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Active and passive voice describe how a sentence shows the relationship between the subject, the verb, and the action. In active voice, the subject does the action, which often makes writing clearer and more direct. In passive voice, the subject receives the action, which can be useful when the action or result matters more than the doer. Knowing the difference helps students write with stronger style and better control.

Key Facts

  • Active voice pattern: Subject + verb + object, as in The student solved the problem.
  • Passive voice pattern: Subject + be verb + past participle + by phrase, as in The problem was solved by the student.
  • To change active to passive, move the object of the active sentence into the subject position.
  • Passive voice often uses forms of be such as is, are, was, were, be, being, or been.
  • The doer in a passive sentence may appear in a by phrase or may be left out entirely.
  • Active voice is usually clearer, but passive voice is useful when the doer is unknown, unimportant, or intentionally hidden.

Vocabulary

Active voice
Active voice is a sentence structure in which the subject performs the action of the verb.
Passive voice
Passive voice is a sentence structure in which the subject receives the action of the verb.
Subject
The subject is the person, place, thing, or idea that the sentence is mainly about.
Object
The object is the person, place, thing, or idea that receives the action in an active sentence.
Past participle
A past participle is a verb form often used with helping verbs, such as written, chosen, broken, or completed.

Common Mistakes to Avoid

  • Calling every sentence with a be verb passive is wrong because some be verbs simply describe a state, as in The room is quiet.
  • Forgetting the doer in passive voice can make writing unclear because readers may need to know who performed the action.
  • Using passive voice when active voice would be stronger can make sentences wordy and less direct.
  • Changing the tense while rewriting a sentence is wrong because the time of the action should stay the same unless the meaning changes.

Practice Questions

  1. 1 Rewrite these 4 active sentences in passive voice: The artist painted the mural. The coach announced the roster. The storm damaged the roof. The scientist recorded the data.
  2. 2 Identify how many of these 6 sentences are passive: The cake was baked by Maya. The dog chased the ball. The window was broken. The class completed the project. The message was sent yesterday. The river flooded the field.
  3. 3 A news report says, The documents were removed from the office. Explain why the writer might choose passive voice here instead of active voice.