1.My brother has written a lot of plays

->

2.he has just finnished his second tragedy

->

3.I haven't done my homework

->

4.You have just seen the moon

->

5.He has read that book since he was a boy

->

Chuyển sang câu bị động 

1. Thì hiện tại hoàn thành:
   - Câu chủ động: "My brother has written a lot of plays."
   - Câu bị động: "A lot of plays have been written by my brother."

2. Thì hiện tại hoàn thành:
   - Câu chủ động: "He has just finished his second tragedy."
   - Câu bị động: "His second tragedy has just been finished by him."

3. Thì hiện tại hoàn thành:
   - Câu chủ động: "I haven't done my homework."
   - Câu bị động: "My homework hasn't been done by me."

4. Thì hiện tại hoàn thành:
   - Câu chủ động: "You have just seen the moon."
   - Câu bị động: "The moon has just been seen by you."

5. Thì hiện tại hoàn thành:
   - Câu chủ động: "He has read that book since he was a boy."
   - Câu bị động: "That book has been read by him since he was a boy."

 Cấu trúc chung:
- Thì hiện tại hoàn thành:
  - Câu chủ động: S + have/has + V3
  - Câu bị động: S + have/has been + V3

`1,` A lot of plays have been written by my brother.

`2,` His second tragedy has just been finished by him. 

`3,` My homework hasn't been done.

`4,` The moon has just seen by you.

`5,` That book has been read by him since he was a boy.

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`@` Bị động thì HTHT:

S+ has/have+ been + V3/V-ed (+by O)