“Voice” describes the relationship between the subject and the action. In the active voice, the subject does the action. In the passive voice, the subject receives it. Knowing when to use each makes your writing clearer and more deliberate.
Active voice
The subject performs the action. It’s direct and usually shorter.
The chef cooked the meal. (subject = chef, who does the cooking)Passive voice
The subject receives the action. It’s formed with be + past participle, and the doer is optional (introduced by by).
The meal was cooked by the chef.The meal was cooked.(doer left out)
How to form the passive
- Take the object of the active sentence and make it the subject.
- Use the right form of
befor the tense. - Add the past participle of the main verb.
Examples across tenses:
- Present:
The room is cleaned every day. - Past:
The room was cleaned. - Present perfect:
The room has been cleaned. - Future:
The room will be cleaned.
When to use the passive
- The doer is unknown:
My bike was stolen. - The doer is obvious or unimportant:
The bridge was built in 1920. - You want to emphasize the result, not the actor.
- Formal, scientific, or official writing.
When to prefer the active
Most of the time, the active voice is the better choice. It’s clearer, more energetic, and uses fewer words. Overusing the passive makes writing feel vague or bureaucratic.
❌Mistakes were made.(Who made them?)
✅We made mistakes.
A simple test
If you can add “by zombies” after the verb and it still makes grammatical sense, the sentence is passive. The meal was cooked (by zombies). — passive!
See it in your own sentences
Paste a sentence into our analyzer and the grammar breakdown will tell you whether it’s active or passive — and suggest a clearer version when the passive is slowing you down.
Put it into practice
Analyze any sentence and see the grammar explained instantly.