Công thức - bị động:

- Thì HTĐ:

(+) S + am/is/are + V3/ed 

(-) S + am/is/are + not + V3/ed 

(?) Am/Is/Are + S+ V3/ed?

- S + used to be + V3/ed 

- Thì QKĐ:

(+) S + was/were + V3/ed 

(-) S + was/were + not + V3/ed 

- S + can + not + be  +V3/ed 

- Thì TLG:

(+) S + am/is/are + going to be + V3/ed

(?) Wh + am/is/are + S+  going to be + V3/ed?

- S + has/have + to be + V3/ed

- Thì TLĐ:

(+) S + will be + V3/ed

(?) WH + will + S + be + V3/ed?

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67. Many people are attracted by this well-known library.

68. We used to be made to clean the house by my mother.

69. I was asked several difficult questions at the interview by a man.

70. This question can't be answered.

71. Nice children are going to be given Christmas presents by Santa Claus tonight.

72. The history os the European Community has to be written one day.

73. When are the results of the contest going to be announced?

74. Where will you be sent by your company next year?

75. Ann will be invited to the party by Bill.

76. That letter wasn't written.

77. The White House is visited by hundreds of people every day.

78. This fact isn't known very well.

79. Are the dishes washed every day?

80. That play was written by Shakespeare.

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