From NCERTAsked by Anonymous from Chicago, United States23 Oct 2026, 5:33 PM ISTUpdated
In one line
To change a passive sentence back to active, make the doer (agent) the subject and use the right verb form.
The rule
In active voice, the subject does the action. In passive voice, the subject receives the action. To change passive to active, find the real doer and make it the subject.
Formula:
Passive: Subject + form of 'to be' + past participle (V3) + (by + agent)
Active: Agent (doer) + verb + object
Let's understand it simply
Imagine you see this sentence: “The ball was hit by Virat.”
Here, the ball is getting hit (receiving the action), and Virat is doing the hitting. To make it active, just put Virat in front: “Virat hit the ball.”
It’s like in cricket: who is batting? The person with the bat, not the ball!
How it works
Find the agent: Look for the “by” phrase (e.g., by the teacher). That’s the doer.
Make the agent the subject: Start your sentence with this doer.
Change the verb: Use the correct tense of the main verb (not the 'be' form + V3).
Add the object: The old subject (who received the action) becomes the object.
Remove 'by': Don’t use 'by' in the active sentence.
Changing Passive to Active Voice
Find the agent (after 'by')
Make the agent the subject
Use the correct verb tense
Add the old subject as the object
Remove 'by'
The story behind it
English teachers and writers noticed that sentences are clearer when we know who is doing the action. That’s why active voice is often preferred. Passive voice is used when we don’t know the doer, or the doer is not important.
Where you see it in real life
Cricket commentary: “The ball was caught by the fielder.” → “The fielder caught the ball.”
School reports: “The homework was completed by Riya.” → “Riya completed the homework.”
Kitchen: “The tea was made by Amma.” → “Amma made the tea.”
News: “The bridge was built by engineers.” → “Engineers built the bridge.”
Classroom: “The answer was written by the student.” → “The student wrote the answer.”
Why it matters
Makes your writing and speaking clearer.
Helps you answer grammar questions in exams.
Useful for writing essays, letters, and reports.
Needed for editing and correcting sentences in higher classes.
Common mistakes
Forgetting the agent: Sometimes the doer is missing. If there is no agent, you cannot make it active.
Wrong verb tense: Don’t use 'was' or 'were' in active voice. Use the main verb in the correct tense.
Mixing up subject and object: Remember, the doer becomes the subject, and the receiver becomes the object.
Leaving 'by' in the sentence: Remove 'by' when you change to active.
Remember it
If you see “by” in a sentence, flip it! The word after “by” becomes the subject in active voice.
Check yourself
Change this to active: 'The song was sung by Lata.'
Lata sang the song. (Lata is the doer, so she becomes the subject.)
Why do we remove 'by' when changing to active?
Because the doer becomes the subject, so 'by' is not needed.
What is the agent in 'The food was cooked by the chef'?
The chef.
Change to active: 'The letter was written by Ravi.'