` 1`. All the jobs have been done by them.

` -` Bị động HTHT : S + have/has + been + V-ed/V3 + (by + O) ...

` 2`. Her project hasn't been finished by her.

` -` Bị động HTHT : S + have/has + been + V-ed/V3 + (by + O) ...

` 3`. Have you been given some help by them?

` -` Bị động HTHT : S + have/has + been + V-ed/V3 + (by + O) ...

` 4`. Were you known by her?

` -` Bị động QKĐ : S + was/were + V-ed/V3 + (by + O) ...

` 5`. Is a new shirt being wore by her?

` -` Bị động HTTD : S + is/am/are + being + V-ed/V3 + (by + O) ...

Công thức chung của câu bị động:

+) Thì hiện tại hoàn thành (HTHT): S + have/has + been + VpII + (by O)

+) Thì quá khứ hoàn thành (QKHT): S + had + been + VpII + (by O)

+) Thì quá khứ đơn (QKĐ): S + was/were + VpII + (by O)

+) Thì hiện tại tiếp diễn (HTTD): S + am/is/are + being + VpII + (by O)

1. They have done all the jobs. (thì hiện tiện hoàn thành)

=> All the jobs have been done (by them).

2. She hasn't finished her project. (thì hiện tiện hoàn thành)

=> Her project hasn't been finished (by her).

3. Had they given you some help? (thì quá khứ hoàn thành)

=> Had you been given some help (by them)?

4. Did she know you? (thì QKĐ)

=> Were you known by her?

5. Is she wearing a new shirt? (thì HTTD)

=> Is a new shirt being worn by her?