Example

Active: JK Rowling wrote Harry Potter.

Passive: Harry Potter was written by JK Rowling.

Active:  She did not watch TV.

Passive: TV was not watched by her. 

Active: Did he break the window?

Passive: Was the window broken by him?

Change the following into passive voice.

1. He wrote a letter.

2. They knew it.

3. She sang a song.

4. He loved his friends very much.

5. She opened the door.

6.  Rahul painted this picture.

7.  His father paid the school fees.

8. She did not know anything about it.

9. Nobody could discourage him from pursuing his path.

10 You did not listen to me.

11.She did not write a story. 

12. Did he break the cup?

13. Did anyone steal your purse?

14. Did anyone hurt your feelings?

15. Did Alice invite you?

16. Did she finish work?

17. Did he cook the food?

18. Did they buy a new car?