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Choosing between active and passive voice depending on context.
Active and passive voice present the same event from different grammatical perspectives.
Active voice normally presents the performer of the action as the subject, while passive voice presents the receiver or affected participant as the subject.
In an active sentence, the subject normally performs the action expressed by the verb.
For example, The company released the product. The company is the agent and the product is the object.
In a passive sentence, the subject normally represents the participant affected by the action.
For example, The product was released by the company. The product is now the grammatical subject.
Active and passive voice can present different participants as the main topic of a sentence.
Compare The police arrested the suspect with The suspect was arrested by the police.
Passive voice is useful when the person or thing responsible for an action is unknown.
For example, My bicycle was stolen. The identity of the person who stole it is not known.
Passive voice is often used when the agent can be inferred easily from the context.
For example, The suspect was arrested. The people who normally make arrests are understood.
Passive voice is useful when the action or result matters more than who performed it.
For example, The road was repaired last week focuses on the road and the repair rather than the workers.
Passive voice is preferred when the person or thing affected by the action is the main topic of the discourse.
For example, The new bridge was opened yesterday continues naturally from a discussion about the bridge.
Passive voice can keep the same participant as the topic across several sentences.
For example, The company launched a new product. The product was developed in-house. The product was tested for six months.
Voice choice can organize known and new information in a way that makes a sentence easier to process.
Passive voice is often useful when the affected participant is already established as the topic and the new information concerns what happened to it.
Passive voice can place longer or more informative material later in the sentence.
For example, The decision was announced by a committee consisting of representatives from several departments can be easier to process than the equivalent active construction.
Active voice is often preferred when the writer wants to make responsibility and agency explicit.
For example, The manager approved the request is more direct about who made the decision than The request was approved.
Passive voice can present an event without foregrounding the person responsible for it.
This can be useful when the process or result is more relevant than the individual actor.
Passive constructions are common in scientific and technical writing when procedures and results are the main focus.
For example, The samples were collected and The solution was heated to 80°C.
Active voice is also common in modern academic and scientific writing when the researcher or author needs to make responsibility clear.
For example, We analyzed the samples is often clearer and more direct than The samples were analyzed.
Passive constructions are common in formal, administrative, legal, and official language.
They can focus attention on procedures, decisions, requirements, and outcomes rather than individuals.
Passive voice should not be used simply because it sounds formal.
When the agent is important and the active sentence is clear and concise, active voice is often preferable.
Passive constructions can make sentences unnecessarily complicated when several passive phrases are stacked together.
Replacing some passive constructions with active ones can improve clarity and readability.
The passive can background the agent, which may make responsibility less explicit.
For example, Mistakes were made does not identify who made them, whereas The team made several mistakes explicitly assigns responsibility.
Passive constructions can sometimes make statements less direct or less personally confrontational.
For example, A mistake was made may sound less confrontational than You made a mistake.
Voice choice in narratives can determine which participant remains prominent from sentence to sentence.
Active voice often foregrounds the actor, while passive voice can keep attention on the affected participant.
Instructions may use active or passive voice depending on whether the person performing the action is important.
Compare Press the button with The button should be pressed after the light turns green.
Voice choice can interact with obligation, possibility, recommendation, and other modal meanings.
Compare You must complete the form with The form must be completed.
Choose active or passive according to topic, information structure, agent importance, register, and communicative purpose.
The passive is not inherently more formal or better; the best choice depends on what the sentence needs to emphasize.
Choose active and passive voice according to meaning and information structure rather than applying a fixed rule.
Common mistakes include overusing passive constructions, using passive when no useful object is available, unnecessarily naming an obvious agent, and choosing passive simply because it appears more formal.