Understanding Active Voice
In active voice, the subject of the sentence聽performs the action聽expressed by the verb. Many writers prefer active voice, because it expresses confidence in writing.
In the following sentences, notice how the subject performs the action of the verb, which makes the sentences direct, clear, and easy to understand:
- Tom wrote the paper.
- The committee is considering the petition for vegan meal options.
- Henry slammed on the brakes at the red light.
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Understanding Passive Voice
In passive voice, the subject of the sentence聽receives the action聽of the verb, making the subject passive instead of active.聽The agent performing the action may appear in a 鈥渂y鈥︹�� phrase, or may not appear at all. The verb is always usually preceded by some form of 鈥渂e鈥� (is, are, was, were, etc.):
- The paper聽was written by听罢辞尘.
The subject here is the paper instead of Tom. The subject (the paper) is acted upon (was written) by someone or something (Tom).
- The petition for vegan meal options聽is being considered.
The subject here is the petition, and the agent of the action (presumably a committee) is completely omitted.
- The brakes聽were slammed聽upon at the red light聽by听贬别苍谤测.
The agent of this action appears at the end of the sentence, making it clunky and awkward.
Reasons to Avoid Passive Voice
- Passive voice can obscure the meaning of sentences.
- Excessive use of passive voice can make your writing seem dry, boring, and uncertain.
- Passive voice can also result in vague or deceptive writing, such as in the following sentence: Mistakes were made. (Who made the mistakes? Unless you are the person who made the mistakes and are evading blame, there is no reason to use passive voice in this sentence.)
- Passive voice sometimes indicates a lack of careful thought. Women have always been oppressed. (By whom? Their mothers? Capitalism? The institution of marriage?)
Reasons to Use Passive Voice
Passive voice is used sometimes in scientific writing to draw attention to processes and results, instead of the individual researcher.
Passive voice sometimes makes more sense than active voice if the agent performing the action is unimportant, obvious, or unknown, or if the writer wants to avoid mentioning the agent altogether. Occasionally, writers choose to use passive voice for rhetorical effect. This is useful if you want the emphasis to be on the action or the thing acted upon rather than the agent.
- Passive:听颁补办别蝉听are made聽to be delicious, not healthy.
- Active:听颁辞辞办蝉听make聽cakes to be delicious, not healthy.
In a paragraph emphasizing cakes and not cooks, the passive voice is preferable because it is both understood and not important that cooks make cakes. The active voice puts unnecessary emphasis on the cook, when what is really important is the cake.
Switching from Passive to Active Voice
When you want to make passive voice active, locate the agent performing the action, usually in a prepositional phrase starting with 鈥渂y,鈥� make that your subject, and change your verb accordingly.
- Passive:聽The jacket聽was returned聽by Bruce.
- Active:听叠谤耻肠别听谤别迟耻谤苍别诲聽the jacket.
In cases where the agent is omitted, you may have to identify the agent.
- Passive:聽The results聽will be presented聽at the conference.
- Active:聽The researchers聽will present聽the results at the conference.
Last revised: 07/2010 |聽Adapted for web delivery: 05/2021
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