Chuyển từ câu chủ động sang câu bị động:

1. It’s everyone’s duty to take part in the campaign to plant trees in spring
2. he wishes the director to consider him for this position
3. They have decided to sell the house
4. I want you to repair the car now
5. I'd like someone to take me to the Opera House
6. By the time you come back,they will have finished the project
7. We get him to look after our house when we are on business
8. They believe that the thieves got in through the kitchen window
9. they didn't explain anything about that

`1.` Everyone is supposed to take part in the campaign to plant trees in spring.

`-` BD `-` HTĐ : S +am / is / are + Ved / V3 + ( by O ).

`->` Chủ ngữ "Everyone" `->` ngôi số ít `->` dùng tobe is.

`2.` He wishes to be considered for this position by the director.

`-` Câu bị động của "wish" : S + wish + to be + Ved / V3 + ( by O ) 

`3.`  They have decided that the house should be sold.

`-` BD `-` ĐTKT : S + should + be + Ved / V3 + ( by O ).

`-` Decide + to V-inf : quyết định làm gì.

`4.` I want the car to be repaired now.

`-` Bị động : S + want + to be + Ved / V3 + ( by O ).

`5.` I’d like to be taken to the Opeara House.

`-` Bị động would like : S + would like + to be + Ved / V3 +( by O ).

`6.` By the time you come back, the project will have been finished.

`-` BD `-` TLHT : S + will have been + Ved / V3 + ( by O ).

`7.` We get our house looked after (by him) when we are on business.

`-` BD `-` nhờ vả : S + get / have + sth + done.

`8.` The thieves are believed to have got in through the kitchen window.

`-` BD `-` tường thuật : S + tobe + believed / said / reported / ... + to have Ved / V3 / V-infi.

`9.` Nothing was explained about that.

`-` BD `-` QKĐ : S + was / were + Ved / V3 + ( by O ).

`⇒`

`1.` Everyone is supposed to take part in the campaign to plant trees in spring.

- Câu bị động thì HTĐ : S + is/am/are + V3/ed (by O)

`2.` He wishes to be considered for this position by the director.

- Câu bị động của wish : S + wish + to be + V3/ed (by O )

`3.`  They have decided that the house should be sold.

- Câu bị động của động từ khuyết thiếu : S + should/ought to  + be + V3/ed + (by O)

- decide to do sth : quyết định làm gì đó

`4.` I want the car to be repaired now.

- Câu bị động của want : S + want + to be + V3/ed + (by O)

`5.` I’d like to be taken to the Opeara House.

- Câu bị động của would like : S + would like + to be + V3/ed + (by O)

`6.` By the time you come back, the project will have been finished.

- Câu bị động thì TLHT : S + will have been + V3/ed (by O)

`7.` We get our house looked after by him when we are on business.

- Câu bị động của câu sai khiến :  S + have/ get + something + P2 + (by O)

`8.` The thieves are believed to have got in through the kitchen window.

`@` Các động từ tường thuật gồm : Agree, suggest, claim, announce, expect, believe, hope, consider, know, think, report, say, understand. 

+ Cấu trúc chủ động : S1 + V1 + that + S2 + V2 + ...

+ Cấu trúc bị động :

- It + V1(bị động) + that + S2 + V2 + ...

- S2 + V1(bị động) + to V2 (bare) 

                                  (nếu V2 và V1 cùng thì)

                               + to have + V2 (p2)

                                  (nếu V2 và V1 khác thì)

`9.` Nothing was explained about that.

- Câu bị động thì QKĐ : S + was/ were + V3/ ed (by O)