`1` Tea can't be made with cold water 

`=>` Câu bị động của ĐTKT : S + modal verb + be + Ved/V3 + ( by O ) 

`2` All the workers of the plants were being instructed by the chief engineer 

`=>` Câu bị động của thì QKTD : S + was/were + being + Ved/V3 + ( by O ) 

`3` Some of my books have been taken away

`=>` Câu bị động của thì HTHT : S + has/have + been + Ved/V3 + ( by O ) 

`4` The meeting will be held before May Day 

`=>` Câu bị động của thì TLĐ : S + will + be + Ved/V3 + ( by O ) 

`5` The engine of the car has to be repaired

`=>` Câu bị động của has to : S + have to + be + Ved/V3 + ( by O ) 

`6` The window were broken and some picture were taken away by the boys 

`=>` Câu bị động thì QKĐ : S + was/were + Ved/V3 + ( by O ) 

`7` A lot of money is spent on advertising every day 

`=>` Câu bị động thì HTĐ : S + is/am/are + Ved/V3 + ( by O ) 

`8` This room may be used for the classrooom 

`=>` Câu bị động của ĐTKT : S + modal verb + be + Ved/V3 + ( by O ) 

`9` A story is going to be told by the teacher

`=>` Câu bị động của thì TLG : S + is/am/are + going to + be + Ved/V3 + ( by O )

`10` The cake is being cut with a sharp knife by Mary 

`=>` Câu bị động thì HTTD : S + is/am/are + being + Ved/V3 + ( by O )

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

`=>` Câu bị động của thì QKĐ : S + was/were + Ved/V3 + ( by O ) 

`12` The victims have been provided with food and clothing

`=>` Câu bị động thì HTHT : S + has/have + been + Ved/V3 + ( by O ) 

`13` The lesson is explained by the teacher

`=>` Câu bị động của thì HTĐ : S + is/am/are + Ved/V3 + ( by O ) 

`14` The food is being cooked by Mrs Green in the kitchen 

`=>` Câu bị động thì HTTD : S + is/am/are + being + Ved/V3 + ( by O ) 

`15` The patients were examined by the doctor

`=>` Câu bị động thì QKĐ : S + was/were + Ved/V3 + ( by O ) 

`@` Note : 

`-` Nếu chủ ngữ là they , somebody , someone , no one , nobody , nothing , people , ... thì không dùng by O 

`-` Nếu chủ ngữ là I , he , she ,it , .... thì có thể dùng by O hoặc không đều được 

`1.` Tea can't be made with cold water.

`2.` All the workers of the plan were being instructed by The chief engineer.

`3.` Some of my book have been taken away.

`4.` The meeting will be held bofore May Day.

`5.`  THe engine of the car has to be repaired.

`6.` the window was broken and some pictures were taken away by the boys.

`7.` A lot of money is sent on advertising everyday.

`8.` This room may be used for the classroom.

`9.` A story is going to be told by the teacher.

`10.` The cake is being cut with a sharp knife.

`11.` The women with a red hat was looked at by the children.

`12.` The victims have been provided with food and clothing.

`13.` The lesson is explained by the teacher.

`14.` The food is being cooked by Mrs Green in the kitchen.

`15.` The patients were examined by the doctor.

__________________________________________________

`+` Cấu trúc câu bị động:

`-` thì HTĐ: S + am/is/are + PII + (BY   O)

`-` thì QKĐ: S + was/were + PII + (BY   O)

`-` thì HTTD: S + am/is/are + being + PII + (BY   O)

`-` thì HTHT: S + have/has + been + PII + (BY  O)

`-` thì TLĐ: S + will + be + PII + (BY   O)

`-` Động từ khuyết thiếu: S + ĐTKT + be + PII + (BY   O)