What passive voice actually is
Passive voice has a precise grammatical shape: a form of “be” plus a past participle, with the sentence’s subject receiving the action instead of performing it.
The proposal was rejected by the committee.
“The proposal” is the subject, but it isn’t doing anything. The committee did the rejecting. That’s the whole test. Ask who or what is performing the verb. If the answer isn’t the grammatical subject, the sentence is passive.
Active voice reverses the roles:
The committee rejected the proposal.
Same event, same facts. The subject now performs the action instead of receiving it.
Common myths about passive voice
Three beliefs about passive voice come up constantly, and all three are wrong.
“Was” doesn’t mean passive. “She was tired” is not passive voice. It’s a be-verb followed by an adjective, called a copula. Nothing is being done to anyone. Compare it to “She was promoted,” where “promoted” is a past participle and someone else did the promoting. Same “was,” completely different grammar.
Past tense isn’t passive either. “She walked to the store” is active and past tense at once. Passive voice is about who acts, not when something happened. Plenty of confident, direct writing lives entirely in the past tense.
Passive voice isn’t automatically weak or wrong. Style guides that say “avoid passive voice” as a blanket rule are giving advice that’s too broad to be useful. The real question isn’t whether a sentence is passive. It’s whether the sentence should say who did the action, and doesn’t.
How to identify passive voice
To spot passive voice, look for a be-verb, like “is,” “are,” “was,” “were,” or “been,” immediately before, or shortly before, a past participle. That’s a verb form that usually ends in “-ed,” plus common irregulars like “given,” “taken,” “written,” or “made.”
The report was reviewed. The results were finally announced. Mistakes were made.
Then check for a “by” phrase. Its presence changes what you should do next, more than it changes whether the sentence counts as passive.
The report was reviewed by the finance team.
Here, the actor is named. The sentence tells you exactly who did the reviewing. Compare that to “Mistakes were made,” where no actor appears anywhere, which is the more common and more concerning version of the pattern.
When is passive voice acceptable?
Passive voice is the right choice in three situations.
The actor is unknown. “My bike was stolen.” You don’t know who took it, and passive voice lets you report the event honestly without inventing a subject.
The actor doesn’t matter. “The bridge was completed in 1932.” The reader cares about the bridge, not the construction crew. Naming an actor here adds a detail nobody asked for.
The passive keeps the topic in view. “The proposal was reviewed by the finance team. It was rejected the following week.” Both sentences keep “the proposal” as the subject, so the reader’s attention never has to jump. Rewriting the second sentence as “The finance team rejected it” works too. But it also shifts the spotlight onto the team instead of the proposal, which may not be what the writing needs.
When should you rewrite passive voice?
Rewrite passive voice when the sentence names no actor and the reader genuinely needs to know who acted. That case is the problem one, and it differs from all three above. “Mistakes were made” during a product outage tells a reader nothing about who’s accountable or what changed. That’s not a grammar problem. It’s a missing-information problem that happens to be wearing passive voice as a disguise.
How to rewrite passive voice as active
Most passive sentences convert with the same two moves: find the true actor, and move it to the front.
Passive: The decision was made by the board. Active: The board made the decision.
Passive: The budget was approved after months of review. Active: After months of review, the finance team approved the budget.
The second example needed an added actor, since the original sentence never named one. That’s often the real fix: not just rearranging words, but figuring out who was actually doing the acting, and saying so.
Is “must be reviewed” passive voice?
Yes. Modal constructions like “must be reviewed,” “should be approved,” and “can be fixed” are all passive. They just add a modal verb, like “must,” “should,” or “can,” in front of the be-verb. The test doesn’t change. Ask who is doing the reviewing, approving, or fixing. If the sentence doesn’t say, you’ve got the same actor-less problem, wrapped in extra words.
Perfect tenses work the same way. “Has been reviewed,” “had been submitted,” and “will have been approved” are all passive. Each one is built from a form of “have,” a form of “be,” and the participle. The auxiliary verbs stack up, but the core test never changes: find the participle, then ask who performed it.
Find passive voice in your own writing
Spotting passive voice by eye gets harder in a long document, especially the actor-less kind that hides in plain sight between more ordinary sentences. Our passive voice finder highlights every instance in your text automatically. It also tells you which ones are worth fixing, and which ones are doing their job correctly.
For the deeper case on sentence structure generally, read why long sentences are hard to follow. Passive constructions are one of the most common ways a subject and verb end up far apart. That’s exactly the pattern that piece walks through in detail.
How much passive voice is normal?
It helps to know what the baseline actually looks like rather than guessing. We ran the passive-voice rule over 20,710 US federal documents published between 2000 and 2025, and the answer is remarkably consistent: most agencies put a passive construction in 23% to 31% of their sentences, with the Agriculture Department highest at 34.5% and the Postal Regulatory Commission lowest at 10.8%.
So if roughly a quarter of your sentences are passive, you write about like the federal government does — which may or may not be the news you wanted. The full breakdown, including which agencies sit where and the raw per-document data, is in the Notice/Rule Gap study.