Blog about English
Using paired conjunctions such as either...or and neither...nor.
Correlative conjunctions are paired expressions that work together to connect grammatically equivalent elements.
Common pairs include both ... and, either ... or, neither ... nor, not only ... but also, and whether ... or.
Both ... and connects two elements and indicates that both are included.
For example, Both John and Mary attended the meeting.
Both ... and can connect phrases that perform the same grammatical function.
For example, She is both intelligent and hardworking.
Both ... and can connect two clauses when both pieces of information are included.
For example, She both works full-time and studies at university.
Either ... or presents two alternatives and indicates that one or the other is relevant.
For example, You can either stay here or come with us.
Either ... or can connect two noun phrases functioning in the same grammatical role.
For example, Either John or Mary will lead the meeting.
Either ... or can connect two alternative actions, predicates, or phrases.
For example, You can either call me or send me a message.
Neither ... nor expresses two negative alternatives and indicates that neither applies.
For example, Neither John nor Mary was available.
Neither ... nor normally already provides the negative meaning, so another negative marker is usually unnecessary in standard English.
For example, Neither John nor Mary came, not Neither John nor Mary did not come.
Not only ... but also adds a second element while giving it additional emphasis.
For example, She is not only intelligent but also hardworking.
Not only ... but also can connect clauses with parallel grammatical structures.
For example, She not only finished the project but also presented the results.
When not only begins a clause for emphasis, subject-auxiliary inversion normally follows.
For example, Not only did she finish the project, but she also improved it.
Whether ... or presents alternatives when discussing uncertainty, choice, or two possible conditions.
For example, I do not know whether to stay or leave.
Whether ... or not emphasizes that the result applies regardless of which possibility is true.
For example, Whether you agree or not, the decision has been made.
Either ... or can coordinate alternative actions or situations within a modal construction.
For example, You can either stay or leave.
Neither ... nor can coordinate two negative alternatives within a modal construction.
For example, You can neither stay nor leave.
With either ... or subjects, the verb commonly agrees with the subject or noun phrase closest to it in standard usage.
For example, Either the manager or the assistants are responsible, but Either the assistants or the manager is responsible.
With neither ... nor subjects, the verb commonly agrees with the nearest subject or noun phrase in standard usage.
For example, Neither the manager nor the assistants are available, but Neither the assistants nor the manager is available.
When both coordinated subjects are singular, the verb is singular.
For example, Either John or Mary is responsible.
When both coordinated subjects are plural, the verb is plural.
For example, Either the managers or the assistants are responsible.
The elements connected by a correlative conjunction should normally have matching grammatical forms.
For example, She likes both reading and writing, not She likes both reading and to write.
Correlative conjunctions can connect parallel noun phrases.
For example, Both the manager and the assistant attended the meeting.
Correlative conjunctions can connect adjectives or adjective phrases with the same grammatical function.
For example, The job is both demanding and rewarding.
When two actions are coordinated through a correlative conjunction, their verb forms should normally be parallel.
For example, She either works from home or studies at the library.
The paired structure can connect prepositional phrases when both alternatives or elements have the same grammatical function.
For example, The decision depends on either the manager or the client.
Informal and emphatic English can use not just ... but to highlight an additional or contrasting point.
For example, It is not just useful but also easy to use.
Whether ... or can occur inside noun clauses and indirect questions when alternatives are being considered.
For example, I do not know whether he will stay or leave.
Correlative conjunctions can make alternatives, inclusion, or contrast more explicit and emphatic than simple coordination.
For example, Not only did she finish the work, but she also improved it.
Choose the correlative conjunction according to the intended relationship: inclusion, alternatives, exclusion, emphasis, or uncertainty.
Use both ... and for inclusion, either ... or for alternatives, neither ... nor for negative alternatives, not only ... but also for emphatic addition, and whether ... or for alternatives under consideration.
Use both parts of the correlative conjunction and maintain correct parallel structure and agreement.
Common mistakes include omitting the second conjunction, mixing non-parallel forms, using unnecessary negatives with neither ... nor, and choosing the wrong verb after either ... or or neither ... nor.