Class 9 English Grammar: Active and Passive Voice
Voice refers to the form of a verb that indicates whether the subject of the sentence performs the action or receives the action.
- Active Voice: The subject is the “doer” of the action. (e.g., Rahul reads a book.)
- Passive Voice: The subject is the “receiver” of the action. (e.g., A book is read by Rahul.)
Understanding how to convert sentences between Active and Passive voice is essential for the Editing/Omission and Sentence Transformation sections of your exams.
The 5 Golden Rules of Conversion
When changing a sentence from Active to Passive Voice, follow these fundamental rules:
- Swap Subject and Object: The Object of the active sentence becomes the Subject of the passive sentence. The Subject of the active sentence becomes the Object of the passive sentence.
- Add “By”: The new object in the passive sentence is usually preceded by the preposition “by”.
- Always Use V3: The main verb of the active sentence MUST be changed into its 3rd form (Past Participle / V3) in the passive sentence. (e.g., write ➔ written, play ➔ played).
- Change the Helping Verb: You must add or change the helping verb (is, am, are, was, were, been, being, be) according to the tense of the active sentence.
- Change the Pronouns: * I ➔ me
- We ➔ us
- He ➔ him
- She ➔ her
- They ➔ them
- You ➔ you (No change)
- It ➔ it (No change)
Tense-Wise Rules and Examples
(Note: 4 tenses cannot be changed into passive voice: Present Perfect Continuous, Past Perfect Continuous, Future Continuous, and Future Perfect Continuous).
1. Simple Present Tense
- Active: Subject + V1(s/es) + Object
- Passive Rule: Object + is/am/are + V3 + by + Subject
- Examples:
- Active: She writes a letter.
- Passive: A letter is written by her.
- Active: They do not play cricket.
- Passive: Cricket is not played by them.
2. Present Continuous Tense
- Active: Subject + is/am/are + V1+ing + Object
- Passive Rule: Object + is/am/are + being + V3 + by + Subject
- Examples:
- Active: He is painting the wall.
- Passive: The wall is being painted by him.
3. Present Perfect Tense
- Active: Subject + has/have + V3 + Object
- Passive Rule: Object + has/have + been + V3 + by + Subject
- Examples:
- Active: I have finished the project.
- Passive: The project has been finished by me.
4. Simple Past Tense
- Active: Subject + V2 + Object
- Passive Rule: Object + was/were + V3 + by + Subject
- Examples:
- Active: He stole my pen.
- Passive: My pen was stolen by him.
- Active: Did you finish the work?
- Passive: Was the work finished by you?
5. Past Continuous Tense
- Active: Subject + was/were + V1+ing + Object
- Passive Rule: Object + was/were + being + V3 + by + Subject
- Examples:
- Active: The boys were eating apples.
- Passive: Apples were being eaten by the boys.
6. Past Perfect Tense
- Active: Subject + had + V3 + Object
- Passive Rule: Object + had + been + V3 + by + Subject
- Examples:
- Active: She had won the match.
- Passive: The match had been won by her.
7. Simple Future Tense
- Active: Subject + will/shall + V1 + Object
- Passive Rule: Object + will/shall + be + V3 + by + Subject
- Examples:
- Active: I will buy a car.
- Passive: A car will be bought by me.
Special Cases
A. Modals (can, could, should, must, etc.)
- Rule: Modal + be + V3
- Examples:
- Active: You can lift this box.
- Passive: This box can be lifted by you.
- Active: We must obey the rules.
- Passive: The rules must be obeyed (by us).
B. Imperative Sentences (Commands/Orders)
Sentences starting with a verb (e.g., “Open the door”).
- Rule: Let + Object + be + V3
- Examples:
- Active: Shut the window.
- Passive: Let the window be shut.
- Active: Do not touch the wire.
- Passive: Let the wire not be touched.
💡 Quick Pro-Tips for CBSE Exams:
- The “Unimportant Doer”: Sometimes, the subject is obvious or unimportant (e.g., someone, people, the police). In the passive voice, you can skip the “by + subject” part.
- Active: The police arrested the thief.
- Passive: The thief was arrested. (No need to say “by the police”)
- Double Object Sentences: If a sentence has two objects (e.g., “He gave me a pen“), you can make either one the subject of the passive sentence.
- Passive 1: I was given a pen by him. (Usually preferred)
- Passive 2: A pen was given to me by him.
- Always Check the Verb Form: The most common mistake is forgetting to use the V3 (Past Participle). Always double-check this when reviewing your answers!