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Comparing actions using comparative and superlative adverbs.
Comparative and superlative adverbs compare how actions are performed.
They describe differences in the manner, speed, frequency or degree of actions.
Tom runs faster than Mike.
Том бегает быстрее Майка.
"Faster" compares the speed at which Tom and Mike run.
She runs faster than her brother.
Она бегает быстрее своего брата.
"Faster" compares the speed at which two people perform an action.
She speaks more clearly than before.
Она говорит более ясно, чем раньше.
"More clearly" compares the way she speaks now with how she spoke before.
He works more carefully than I do.
Он работает более внимательно, чем я.
"More carefully" compares the manner in which two actions are performed.
Of the three students, Anna works most carefully.
Из трех студентов Анна работает наиболее тщательно.
"Most carefully" expresses the highest degree of care among three students.
She arrived earlier than expected.
Она приехала раньше, чем ожидалось.
"Earlier" compares the time of arrival.
He arrived earlier than I did.
Он приехал раньше меня.
"Earlier" compares the time at which the two people arrived.
He speaks more clearly than before.
Он говорит яснее, чем раньше.
"More clearly" describes a change in the manner of speaking.
She sings more beautifully than her sister.
Она поет красивее своей сестры.
"More beautifully" compares the manner of singing.
Of all the students, Maria answered most quickly.
Из всех студентов Мария ответила быстрее всех.
"Most quickly" expresses the highest degree of speed among several actions.
He answered the question most confidently.
Он наиболее уверенно ответил на вопрос.
"Most confidently" shows the highest degree of confidence among the people being compared.
He drives more slowly at night.
Он ездит медленнее ночью.
"More slowly" compares how he drives at different times.
We need to work more efficiently.
Нам нужно работать эффективнее.
"More efficiently" compares the desired way of working with the current one.
She sings better than her sister.
Она поет лучше своей сестры.
"Better" is the comparative form of "well".
Who can finish the task fastest?
Кто может выполнить задание быстрее всех?
"Fastest" asks which person can perform the action in the shortest time.
He explained the problem most clearly.
Он объяснил проблему наиболее ясно.
"Most clearly" expresses the highest degree of clarity among possible explanations.
Comparative adverbs compare how two actions are performed.
Most adverbs form the comparative with more, while some use the -er ending.
She runs faster than me.
Она бегает быстрее меня.
"Faster" is the comparative form of the adverb "fast".
She runs faster than I do.
Она бегает быстрее меня.
"Faster" is the comparative form of the adverb "fast".
He works harder than his brother.
Он работает усерднее своего брата.
"Harder" is the comparative form of the adverb "hard".
He arrived earlier than us.
Он приехал раньше нас.
"Earlier" is the comparative form of "early".
She speaks more slowly than her teacher.
Она говорит медленнее своего учителя.
"More slowly" forms the comparative of the long adverb "slowly".
She works more carefully than her colleague.
Она работает более внимательно, чем ее коллега.
"More carefully" is the comparative form of the longer adverb "carefully".
They arrived earlier than expected.
Они приехали раньше, чем ожидалось.
"Earlier" is the comparative form of "early".
He speaks more slowly than before.
Он говорит медленнее, чем раньше.
"More slowly" forms the comparative with "more".
He explained the problem more clearly than I did.
Он объяснил проблему яснее, чем я.
"More clearly" compares the manner of explaining.
They worked harder this year.
В этом году они работали усерднее.
"Harder" is the comparative form of "hard".
The children played more quietly after dinner.
Дети играли тише после ужина.
"More quietly" is the comparative form of "quietly".
She answered more politely this time.
На этот раз она ответила более вежливо.
"More politely" compares the manner of answering.
Can you drive more carefully?
Можешь ты водить осторожнее?
"More carefully" compares the requested manner of driving with the current manner.
He finished sooner than expected.
Он закончил раньше, чем ожидалось.
"Sooner" is the comparative form of "soon".
She answered more confidently than before.
Она ответила увереннее, чем раньше.
"More confidently" compares her present manner of answering with her previous manner.
She reacted more calmly than I expected.
Она отреагировала спокойнее, чем я ожидал.
"More calmly" compares the manner of reacting.
Superlative adverbs express the highest or lowest degree among three or more actions.
Most adverbs form the superlative with most, while some use the -est ending.
James runs fastest in the class.
Джеймс бегает быстрее всех в классе.
"Fastest" expresses the highest degree of speed among the students.
She runs the fastest in the team.
Она бегает быстрее всех в команде.
"The fastest" expresses the highest degree of speed among the team members.
She arrived earliest of everyone.
Она приехала раньше всех.
"Earliest" expresses the earliest time among all the people being compared.
He arrived the earliest of everyone.
Он приехал раньше всех.
"The earliest" expresses the earliest time among several arrivals.
He worked hardest during the final week.
Он усерднее всего работал в последнюю неделю.
"Hardest" expresses the greatest degree of effort.
She answered the most carefully.
Она ответила наиболее внимательно.
"The most carefully" expresses the highest degree of care among several actions.
She spoke most clearly of all the candidates.
Она говорила наиболее ясно из всех кандидатов.
"Most clearly" expresses the highest degree of clarity among the candidates.
He explained the problem the most clearly.
Он объяснил проблему наиболее ясно.
"The most clearly" is the superlative form of "clearly".
Of all the runners, Mark moved most quickly.
Из всех бегунов Марк двигался быстрее всего.
"Most quickly" expresses the highest degree of speed.
Of all the players, John played the best.
Из всех игроков Джон сыграл лучше всех.
"The best" is the superlative form of "well".
Which student answered most accurately?
Какой студент ответил наиболее точно?
"Most accurately" asks for the highest degree of accuracy.
She reacted the most calmly.
Она отреагировала наиболее спокойно.
"The most calmly" expresses the highest degree of calmness in the comparison.
She sings most beautifully in the choir.
Она красивее всех поет в хоре.
"Most beautifully" indicates the highest degree of beauty in the manner of singing.
He worked the hardest of everyone.
Он работал усерднее всех.
"The hardest" expresses the highest degree of effort.
He explained the rule most patiently.
Он терпеливее всех объяснил правило.
"Most patiently" expresses the highest degree of patience shown while explaining.
She spoke the most confidently during the meeting.
На встрече она говорила наиболее уверенно.
"The most confidently" expresses the highest degree of confidence among the speakers.
Short adverbs usually take -er and -est, while longer adverbs normally use more and most.
Compare fast → faster → fastest and early → earlier → earliest with carefully → more carefully → most carefully.
She runs faster than her brother.
Она бегает быстрее своего брата.
"Fast" is a short adverb and forms its comparative with "-er".
He runs faster than me.
Он бегает быстрее меня.
"Fast" is a short adverb and forms its comparative with "-er".
He runs the fastest in his team.
Он бегает быстрее всех в своей команде.
"Fast" forms its superlative with "-est".
She runs the fastest in her class.
Она бегает быстрее всех в своем классе.
"Fast" forms its superlative with "-est".
She arrived earlier than us.
Она приехала раньше нас.
"Early" forms its comparative as "earlier".
He arrived earlier than expected.
Он приехал раньше, чем ожидалось.
"Early" forms its comparative as "earlier".
He arrived earliest of all.
Он приехал раньше всех.
"Early" forms its superlative as "earliest".
She arrived earliest of all.
Она приехала раньше всех.
"Early" forms its superlative as "earliest".
She spoke more carefully than before.
Она говорила осторожнее, чем раньше.
"Carefully" is a longer adverb and normally forms its comparative with "more".
She completed the task more carefully than I did.
Она выполнила задание более внимательно, чем я.
"Carefully" is a longer adverb and normally takes "more" in the comparative.
He answered most carefully of all.
Он ответил наиболее тщательно из всех.
"Carefully" normally forms its superlative with "most".
He completed the task most carefully.
Он выполнил задание наиболее внимательно.
"Carefully" normally forms its superlative with "most".
They worked harder after lunch.
Они усерднее работали после обеда.
"Hard" is a short adverb and takes the "-er" comparative ending.
The car moved faster after the repair.
После ремонта машина двигалась быстрее.
"Faster" is formed with "-er" because "fast" is a short adverb.
She explained the instructions most clearly.
Она наиболее ясно объяснила инструкции.
"Clearly" is a longer adverb and normally uses "most" for the superlative.
She spoke most carefully when answering the difficult questions.
Она говорила наиболее внимательно, отвечая на сложные вопросы.
"Most carefully" uses "most" because "carefully" is a longer adverb.
Some common adverbs have irregular comparative and superlative forms.
Examples include well → better → best, badly → worse → worst, little → less → least and much → more → most.
She sings better than I do.
Она поет лучше меня.
"Better" is the irregular comparative form of the adverb "well".
She sings better than her sister.
Она поет лучше своей сестры.
"Better" is the irregular comparative form of "well".
He performed best in the final round.
Он лучше всех выступил в финальном раунде.
"Best" is the irregular superlative form of "well".
He played the best of all the students.
Он сыграл лучше всех студентов.
"Best" is the irregular superlative form of "well".
She played worse than yesterday.
Она сыграла хуже, чем вчера.
"Worse" is the irregular comparative form of the adverb "badly".
She behaved worse than before.
Она вела себя хуже, чем раньше.
"Worse" is the irregular comparative form of "badly".
He played worst of all.
Он сыграл хуже всех.
"Worst" is the irregular superlative form of "badly".
He performed the worst in the final test.
Он хуже всех выступил на итоговом тесте.
"Worst" is the irregular superlative form of "badly".
I sleep less than I used to.
Я сплю меньше, чем раньше.
"Less" is the irregular comparative form of the adverb "little".
I sleep less during the week.
Я меньше сплю в течение недели.
"Less" is the comparative form of the adverb "little".
She talks least in the morning.
Утром она говорит меньше всего.
"Least" is the irregular superlative form of "little".
She sleeps the least of everyone in the family.
Она спит меньше всех в семье.
"Least" is the superlative form of "little".
He visits us more than his sister does.
Он навещает нас чаще, чем его сестра.
"More" is the comparative form used with the adverb "much".
He visits us more often than before.
Он посещает нас чаще, чем раньше.
"More" is the irregular comparative form of "much" or "often" in this comparison.
She complained most during the trip.
Во время поездки она жаловалась больше всех.
"Most" is the superlative form used with the adverb "much".
She visits us the most often.
Она посещает нас чаще всех.
"Most often" expresses the highest frequency among the people being compared.
Equality is expressed with as...as and not as...as.
Examples include She sings as beautifully as her sister and He does not work as efficiently as before.
She sings as beautifully as her sister.
Она поет так же красиво, как ее сестра.
"As beautifully as" shows that the two people perform the action to the same degree.
She sings as beautifully as her sister.
Она поет так же красиво, как ее сестра.
"As beautifully as" expresses equality in the manner of singing.
He works as efficiently as his manager.
Он работает так же эффективно, как его менеджер.
"As efficiently as" expresses equal efficiency.
He works as efficiently as his colleague.
Он работает так же эффективно, как его коллега.
"As efficiently as" shows that two people work to the same degree of efficiency.
I do not drive as quickly as my brother.
Я не вожу так быстро, как мой брат.
"Not as quickly as" expresses a lower degree than the other person.
She does not speak as clearly as her teacher.
Она говорит не так ясно, как ее учитель.
"Not as clearly as" expresses a lower degree of clarity.
She speaks as clearly as her teacher.
Она говорит так же ясно, как ее учитель.
"As clearly as" compares equal clarity.
He drives as carefully as his father.
Он водит машину так же осторожно, как его отец.
"As carefully as" expresses equal manner of driving.
He does not work as hard as before.
Он работает не так усердно, как раньше.
"Not as hard as" shows that the present degree of effort is lower.
They arrived as early as we did.
Они приехали так же рано, как и мы.
"As early as" compares the time of two arrivals.
They arrived as early as we did.
Они приехали так же рано, как и мы.
"As early as" shows that both groups arrived at the same time.
She did not work as quickly as before.
Она работала не так быстро, как раньше.
"Not as quickly as" indicates a lower degree of speed.
She answered as confidently as the other candidates.
Она ответила так же уверенно, как остальные кандидаты.
"As confidently as" expresses equal confidence in the action.
He answered as politely as possible.
Он ответил настолько вежливо, насколько это было возможно.
"As politely as possible" expresses the maximum degree within a comparison.
He did not react as calmly as expected.
Он отреагировал не так спокойно, как ожидалось.
"Not as calmly as" compares the actual degree with the expected degree.
She completed the work as quickly as she could.
Она выполнила работу так быстро, как только могла.
"As quickly as she could" compares the action with the maximum speed possible for her.
Comparative adverbs describe differences in the way actions are performed.
They commonly modify verbs and verb phrases rather than nouns.
Maria writes faster than John.
Мария пишет быстрее Джона.
"Faster" compares how quickly Maria and John write.
John runs faster than Peter.
Джон бегает быстрее Питера.
"Faster" modifies the verb "runs" and compares two actions.
He explained the problem more clearly than I did.
Он объяснил проблему яснее, чем я.
"More clearly" compares the manner in which the two people explained the problem.
She speaks more clearly than I do.
Она говорит яснее, чем я.
"More clearly" compares the manner of two speaking actions.
She works more carefully than her colleagues.
Она работает тщательнее своих коллег.
"More carefully" modifies the verb "works" and compares the manner of working.
He works harder than his colleagues.
Он работает усерднее своих коллег.
"Harder" compares the intensity of the work performed.
They arrived earlier than we expected.
Они приехали раньше, чем мы ожидали.
"Earlier" compares the time of arrival.
They arrived earlier than we expected.
Они приехали раньше, чем мы ожидали.
"Earlier" compares the timing of the arrival.
You should speak more slowly.
Тебе следует говорить медленнее.
"More slowly" compares the requested manner of speaking with the current manner.
She completed the task more efficiently than before.
Она выполнила задание эффективнее, чем раньше.
"More efficiently" compares the efficiency of two actions.
He drives more safely than he used to.
Он водит безопаснее, чем раньше.
"More safely" compares his present and past manner of driving.
He reacted more calmly than everyone else.
Он отреагировал спокойнее всех остальных.
"More calmly" compares the manner of reacting.
She answered better than the other students.
Она ответила лучше остальных студентов.
"Better" compares the quality of the action of answering.
She answered more confidently after the training.
После обучения она отвечала увереннее.
"More confidently" compares the manner of answering before and after training.
Who performed most confidently?
Кто выступил наиболее уверенно?
"Most confidently" compares the manner of performing among several people.
He explained the process more clearly than the previous speaker.
Он объяснил процесс яснее предыдущего выступающего.
"More clearly" modifies "explained" and compares two explanations.
Words such as much, far, a lot, even and slightly modify comparative adverbs.
Examples include much faster, far more carefully and slightly better.
She runs much faster than I do.
Она бегает намного быстрее меня.
"Much" strongly increases the difference expressed by the comparative "faster".
She runs much faster than I do.
Она бегает намного быстрее меня.
"Much" strengthens the comparative "faster".
He works far more carefully now.
Теперь он работает гораздо тщательнее.
"Far" strongly emphasizes the comparative "more carefully".
He works far more carefully than before.
Он работает гораздо внимательнее, чем раньше.
"Far" strongly increases the difference expressed by "more carefully".
She finished a lot faster than expected.
Она закончила намного быстрее, чем ожидалось.
"A lot" emphasizes the degree of difference expressed by "faster".
She arrived a lot earlier than expected.
Она приехала намного раньше, чем ожидалось.
"A lot" emphasizes the size of the difference expressed by "earlier".
He responded even more quickly after the warning.
После предупреждения он ответил еще быстрее.
"Even" emphasizes the additional degree expressed by "more quickly".
He performed even better in the final.
В финале он выступил еще лучше.
"Even" emphasizes an additional or surprising increase represented by "better".
The new system operates slightly faster.
Новая система работает немного быстрее.
"Slightly" indicates a small difference in the comparative "faster".
She speaks slightly more slowly than before.
Она говорит немного медленнее, чем раньше.
"Slightly" indicates a small difference in the comparative "more slowly".
She speaks much more confidently now.
Теперь она говорит гораздо увереннее.
"Much" emphasizes the larger degree expressed by "more confidently".
They worked considerably harder this year.
В этом году они работали значительно усерднее.
"Considerably" emphasizes a substantial difference in the comparative "harder".
He arrived a little earlier than us.
Он приехал немного раньше нас.
"A little" indicates a small difference in the comparative "earlier".
He answered much more confidently after the training.
После обучения он отвечал намного увереннее.
"Much" intensifies the comparative phrase "more confidently".
They worked considerably harder after the deadline changed.
После изменения срока они работали значительно усерднее.
"Considerably" indicates a substantial difference in the comparative "harder".
She completed the task slightly faster than yesterday.
Она выполнила задание немного быстрее, чем вчера.
"Slightly" shows that the difference expressed by "faster" is small.
Less and least express decreasing degrees of comparison.
They are commonly used with longer adverbs and in formal comparisons.
She speaks less confidently than her colleague.
Она говорит менее уверенно, чем ее коллега.
"Less confidently" expresses a lower degree of confidence in the action.
She works less efficiently than before.
Она работает менее эффективно, чем раньше.
"Less efficiently" expresses a lower degree of efficiency.
He works less efficiently under pressure.
Под давлением он работает менее эффективно.
"Less efficiently" expresses a lower degree of efficiency.
He speaks less confidently in public.
Он менее уверенно говорит на публике.
"Less confidently" expresses a lower degree of confidence.
Of all the employees, she responds least quickly.
Из всех сотрудников она отвечает медленнее всего.
"Least quickly" expresses the lowest degree of speed among the employees.
She reacted less calmly than expected.
Она отреагировала менее спокойно, чем ожидалось.
"Less calmly" expresses a lower degree of calmness.
He reacts less calmly when he is tired.
Когда он устал, он реагирует менее спокойно.
"Less calmly" compares a lower degree of calmness.
Of all the candidates, he answered least confidently.
Из всех кандидатов он ответил наименее уверенно.
"Least confidently" expresses the lowest degree among the candidates.
This device operates less reliably than the older model.
Это устройство работает менее надежно, чем старая модель.
"Less reliably" forms a negative comparison with a long adverb.
She works less carefully when she is tired.
Она работает менее внимательно, когда устает.
"Less carefully" compares a lower degree of care.
She explained the process least clearly of the three.
Из трех она объяснила процесс наименее ясно.
"Least clearly" expresses the lowest degree of clarity.
He performed least successfully in the final round.
В финальном раунде он выступил наименее успешно.
"Least successfully" expresses the lowest degree of success.
They visit us less frequently now.
Теперь они навещают нас реже.
"Less frequently" expresses a reduced frequency.
They communicate less effectively than they used to.
Они общаются менее эффективно, чем раньше.
"Less effectively" expresses a decrease in effectiveness.
He participated least actively in the discussion.
Он наименее активно участвовал в обсуждении.
"Least actively" expresses the lowest degree of participation.
She handled the situation least diplomatically.
Она наименее дипломатично справилась с ситуацией.
"Least diplomatically" identifies the lowest degree of diplomacy.
Comparative adverbs interact with comparative adjectives and comparative clauses.
Choosing the appropriate comparative structure depends on whether the comparison concerns an action, a quality or an entire situation.
She works harder than her brother.
Она работает усерднее своего брата.
"Harder" compares an action, so an adverb is required rather than the adjective "hard".
She runs faster than her brother.
Она бегает быстрее своего брата.
"Faster" compares an action, so an adverb is required.
Her explanation is clearer than mine.
Ее объяснение понятнее моего.
"Clearer" modifies the noun phrase "explanation" through a linking verb, so an adjective is required.
Her car is faster than mine.
Ее машина быстрее моей.
"Faster" is an adjective here because it describes the noun "car".
She explained the issue more clearly than I did.
Она объяснила вопрос яснее, чем я.
"More clearly" modifies the verb "explained", so the adverbial form is required.
He works more efficiently than his predecessor.
Он работает эффективнее своего предшественника.
"More efficiently" compares the performance of two people.
The new system works better than the old one.
Новая система работает лучше старой.
"Better" compares the performance of two systems by modifying the verb "works".
The new system is more efficient than the old one.
Новая система эффективнее старой.
"More efficient" is an adjective phrase describing the systems themselves.
The new system is better than the old one.
Новая система лучше старой.
"Better" is an adjective here because it follows the linking verb "is".
She speaks more clearly when she is prepared.
Она говорит яснее, когда подготовлена.
"More clearly" compares the manner of speaking in two situations.
He reacted more calmly than expected.
Он отреагировал спокойнее, чем ожидалось.
"More calmly" compares the manner of reacting.
The situation is considerably worse than we expected.
Ситуация значительно хуже, чем мы ожидали.
"Worse" is an adjective because it describes "situation", while "considerably" modifies the comparison.
The whole process was much easier than expected.
Весь процесс оказался намного проще, чем ожидалось.
"Easier" compares a quality of the process, so an adjective rather than an adverb is used.
He completed the task more quickly than anyone else.
Он выполнил задание быстрее всех остальных.
"More quickly" compares the performance of several people.
She completed the task much more quickly than expected.
Она выполнила задание намного быстрее, чем ожидалось.
"Much more quickly" compares the action and uses an adverb with a comparative modifier.
The company is performing better than expected.
Компания работает лучше, чем ожидалось.
"Better" is an adverb modifying "performing", not an adjective modifying "company".
Comparative adverbs may express literal comparison, emphasis or rhetorical effect.
Usage varies according to register, style and communicative purpose.
The revised model performs considerably better than the original.
Пересмотренная модель работает значительно лучше оригинальной.
"Considerably better" gives a precise, relatively formal emphasis to the comparison.
The new system operates considerably more efficiently.
Новая система работает значительно эффективнее.
"Considerably more efficiently" is suitable for formal or analytical comparison.
She handled the interview much more confidently than before.
Она провела собеседование гораздо увереннее, чем раньше.
"Much more confidently" strongly emphasizes the improvement in manner.
She sings much better now.
Сейчас она поет намного лучше.
"Much better" is common in everyday comparison.
The system responded slightly faster after the update.
После обновления система стала реагировать немного быстрее.
"Slightly faster" emphasizes that the improvement is real but small.
The revised method performs substantially better.
Усовершенствованный метод работает значительно лучше.
"Substantially better" is formal and emphasizes a significant difference.
He could have responded more diplomatically.
Он мог бы ответить более дипломатично.
"More diplomatically" creates a comparison with an implied alternative and can express criticism or suggestion.
He responded far more cautiously than before.
Он ответил гораздо осторожнее, чем раньше.
"Far more cautiously" emphasizes a substantial difference in behavior.
The second proposal was arguably more effectively structured.
Можно утверждать, что второе предложение было более эффективно структурировано.
"More effectively" is characteristic of formal evaluative writing and presents the comparison cautiously.
The figures are significantly higher than previously reported.
Показатели значительно выше, чем сообщалось ранее.
"Significantly higher" is characteristic of formal and analytical comparison.
She speaks far more confidently in public now.
Теперь она говорит на публике гораздо увереннее.
"Far more confidently" strongly emphasizes a noticeable change in performance.
She handled the criticism remarkably well.
Она замечательно справилась с критикой.
"Remarkably well" adds emphasis and suggests that the performance was noteworthy.
The argument was less convincingly presented than the evidence allowed.
Аргумент был представлен менее убедительно, чем позволяли доказательства.
"Less convincingly" creates a formal comparison between the quality of presentation and the available evidence.
He performed even better than expected.
Он выступил еще лучше, чем ожидалось.
"Even better" emphasizes an unexpected additional degree of improvement.
The final result differs markedly from the initial estimate.
Итоговый результат заметно отличается от первоначальной оценки.
"Markedly" emphasizes a clear and significant difference and is common in formal writing.
The revised procedure can be carried out considerably more safely.
Усовершенствованную процедуру можно проводить значительно безопаснее.
"Considerably more safely" combines formal register with emphasis on the degree of difference.
Use the correct comparative form and distinguish adverbs from adjectives.
Common mistakes include using adjective forms instead of adverbs, saying more faster, omitting than, confusing well with good, and forming irregular comparisons incorrectly.
She runs faster than her brother.
Она бегает быстрее своего брата.
"Faster" is an adverb here because it modifies the verb "runs".
She runs faster than her brother.
Она бегает быстрее своего брата.
"Faster" is an adverb modifying "runs"; do not use the adjective "fast" as a replacement in this comparison.
She works much faster than before.
Она работает намного быстрее, чем раньше.
Use "much faster", not "more faster"; "much" modifies the comparative form.
He works more carefully than I do.
Он работает более внимательно, чем я.
"More carefully" is correct; do not say "more careful" when modifying the verb "works".
He speaks more clearly than his teacher.
Он говорит яснее своего учителя.
"More clearly" is the correct comparative form of the adverb "clearly".
She is much faster than before.
Она намного быстрее, чем раньше.
"Much faster" correctly uses "much" to modify a comparative form.
She sings better than I do.
Она поет лучше меня.
Use the irregular adverb "better", not the adjective "good", to modify the verb "sings".
He runs much faster than I do.
Он бегает намного быстрее меня.
Use "much" before the comparative "faster"; do not say "very faster".
This car moves faster than that one.
Эта машина движется быстрее той.
A comparative adverb is used because "faster" modifies the verb "moves".
She sings better than her sister.
Она поет лучше своей сестры.
"Better" is the comparative adverb corresponding to "well", not "more good".
He works harder than his colleague.
Он работает усерднее своего коллеги.
"Harder" is the comparative of the adverb "hard"; do not confuse it with "hardly".
He works harder than before.
Он работает усерднее, чем раньше.
"Harder" means "with greater effort"; it is different from "hardly", which means "almost not".
She arrived earlier than we did.
Она приехала раньше нас.
The comparative "earlier" is followed by "than" to introduce the comparison.
She arrived earlier than expected.
Она приехала раньше, чем ожидалось.
"Earlier" is the correct comparative form of "early".
Of the three candidates, he answered best.
Из трех кандидатов он ответил лучше всех.
"Best" is the irregular superlative form of the adverb "well"; do not use the adjective "best" as a substitute for "well" in the underlying comparison.
He speaks more clearly than before.
Он говорит яснее, чем раньше.
"More clearly" is required because "clearly" is a longer adverb; do not say "more clearer".