1. A new power plan was being building by them.

2. A bunch of flowers was given to her.

3. It must be done by you right now.

4. It was not told by anyone.

5. Someone was invited to dinner with them.

6. A new car will be bought by them.

7. I am often taken to school by my father.

8. Have the holes been filled by workers in the yard?

9. His work was't finished by he yesterday.

10. Are you often taught English by your father?

Cấu trúc câu khẳng định: 

-Active voice: S1+ V( thì)+ O2+ adv( place)+ adv( time)

-Passive voice: S2+ be( thì)+Vpp+ adv( place)+[by O1]+ adv( time)

Cấu trúc câu phủ định: not

-Active voice: S1+ do/does/did+ not+ V+O2+ adv( place)+ adv( time)

-Passive voice: S2+ is/ am/ are/was/were+ not+ Vpp+ adv( place)+ [by O1]+ adv( time)

Cấu trúc câu phủ định: Nobody/No one

-Active voice: Nobody/ No one+ V( thì)+ O2+ adv( place)+ adv( time)

-Passive voice: S2+ be( thì)+ not+Vpp+ adv( place)+[by O1]+ adv( time)

Cấu trúc câu nghi vấn:

-Active voice: (Wh-question)+ trợ động từ+ S1+V( thì)+O2+ adv( place)+ adv( time)?

-Passive voice: (Wh-question)+be( thì)+ S2+ Vpp+ adv( place)+[by O1]+ adv( time)?

`1` A new power plan is being built 

`-` Bị động thì HTTD : S + is/am/are + being + Vpp + ( by O ) 

`2` A bunch of flowers was given to her 

`-` Bị động thì QKĐ : S + was/were + Vpp + ( by O ) 

`3` It must be done right now

`-` Bị động của ĐT khuyết thiếu : S + modal verb + be + Vpp + ( by O ) 

`4` I wasn't told about it

`-` Bị động thì QKĐ : S + was/were + not + Vpp + ( by O ) 

`5` Someone was invited to dine with them 

`-` Bị động thì QKĐ : S + was/were + Vpp + ( by O ) 

`6` A new car will be bought 

`-` Bị động thì TLĐ : S + will + be + Vpp + ( by O ) 

`7` I am often taken to school by my father 

`-` Bị động thì HTĐ : S + is/am/are + Vpp + ( by O ) 

`8` Have the holes been filled by workers in the yard ? 

`-` Bị động thì HTHT : Has/have + S + been + Vpp + ( by O ) ? 

`9` His work wasn't finished yesterday

`-` Bị động thì QKĐ : S + was/were + not + Vpp + ( by O ) 

`10` Is English often taught to you by your father ? 

`-` Bị động thì HTĐ : Is/am/are + S + Vpp + ( by O ) ? 

`+` Note : Nếu chủ ngữ ko xác định thì không nhất thiết dùng by O 

`+` Cấu trúc câu bị động chung : 

`-`  S + be + Vpp + ( by O ) 

`-` S + be + not + Vpp + ( by O ) 

`-` Be + S + Vpp + ( by O ) ?