1 Learning a new language is thought to be challenging.

- A : S1 + think/ say/ suppose/ rumour/... + that + S2 + V

-> P : S2 + is/ am/ are +  thought/ said/ supposed/ rumoured/... to V (V1, V2 cùng chia hiện tại đơn)

2 It is believed that the solution to the problem lies in teamwork.

- A : S1 + think/ say/ suppose/ rumour/... + that + S2 + V

-> P : It is + thought/ said/ supposed/ rumoured/... + that + S2 + V

3 That idea is consider to be  impractical.

4 It is thought that the new government is a good speaker.

5 The suspected robber is reported to be  in the bank today.

6 It isn't expected that the new party will win the election.

- A : S1 + don't/ doesn't + think/ say/ suppose/ rumour/... + that + S2 + V

-> P : It is not/ isn't + thought/ said/ supposed/ rumoured/... + that + S2 + V

7 It was found that the new drug is effective.

- A : S1 + thought/ supposed/ found/... + that + S2 + V

-> It was +  thought/ supposed/ found/... + that + S2 + V

8 It was claimed that he had never seen such a beautiful sunset.

9 He was reported to win  the lottery.

- A : S1 + thought/ supposed/ found/... + that + S2 + V

-> P : S2 + was/ were + thought/ found/ supposed/... + to V (V2 chia quá khứ đơn)

10 The company was announced to launch a new product.

`1.` Learning a new language is thought to be challenging.

`2.` It is believed that the solution to the problem lies in teamwork.

`3.` That idea is considered to be impractical.

`4.` It is thought that the new government is a good speaker.

`5.` The suspected robber is reported to be in the bank today.

`6.` It isn’t expected that the new party will win the election.

`7.` It was found that the new drug is effective by the researchers.

`8.` It was claimed that he had never seen such a beautiful sunset.

`9.` He was reported to have won the lottery.

`10.` The company announced to launch a new product.

`=>` Câu bị động "Kép": Một số động từ thường gặp trong câu bị động kép như: say, think, believe, understand, expect, know, consider, find, ...

`@ TH1:`

`-` Chủ động: S1 + V1 + that + S2 + V2

`->` Bị động:

`+` It is + V3/ed (V1) + that + S2 + V2 

`+` S2 + is/am/are + V3/ed (V1) + to + V-inf (V2) `->` Dùng khi V2 ở câu chủ động chia thì HTĐ/ TLĐ

`+` S2 + is/am/are + V3/ed (V1) + to have + V3/ed (V2) `->` Dùng khi V2 ở câu chủ động chia thì QKĐ/ HTHT

`@ TH2:`

`-` Chủ động: S1 + V1 + that + S2 + V2

`->` Bị động:

`+` It was + V3/ed (V1) + that + S2 + V2 

`+` S2 + was/were + V3/ed (V1) + to + V-inf (V2) `->` Dùng khi V2 ở câu chủ động chia thì QKĐ

`+` S2 + was/were + V3/ed (V1) + to have + V3/ed (V2) `->` Dùng khi V2 ở câu chủ động chia thì QKTD/ QKHT