1. His exercise is done every afternoon
2. I am called by my friends every day
3. The floor is cleaned by Sam twice a day
4. His eyes were checked by the doctor yesterday
5. The essay on the board was written by the teacher
6. The woman with a red hat was looked by the children

→ Vì ở đây chúng ta sẽ có cấu trúc các câu bị động có dạng là: 

⇒ Cấu trúc câu bị động của thì HTĐ có dạng:

( + ) S + is , am , are + PP + ( by + O ) 

( - ) S + is , am , are + not + PP + ( by + O ) 

( ? ) Is , am , are + S + PP + ( by + O ) ? 

⇒ Cấu trúc câu bị động của thì QKĐ có dạng: 

( + ) S + was \ were + PP + ( by + O ) 

( - ) S + was \ were + not + PP + ( by + O ) 

( ? ) Was \ were + S + PP + ( by + O ) ? 

1 His exercise is done every afternoon 

2 I am called by my friends every day 

3 The floor is cleaned twice a day by Sam 

4 His eyes were checked by the doctor yesterday 

5 The essay was written on the board by the teacher 

6 The women with a red hat was looked at by the children 

$\text{Khoa}$