S1 + V1 + that + S2 + V2 

→ S2 + be + V3/ed (V1) + to + V1 (cùng thì)

→ S2 + be + V3/ed (V1) + to have + V3/ed (khác thì)

→ It is + V3/ed (V1) + that + S2 +V2

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1.

- It is thought that Berlin is a nice city.

- Berlin is thought to be a nice city.

2.

- It is known that Shakespeare was born in Stratford.

- Shakespeare is known to have been born in Stratford.

3.

- It was believed that the animals had been killed during the night.

- The animals were believed to have been killed during the night.

4.

- It is said that the album contains really good songs.

- The album is said to contain really good songs.

5.

- It is thought that Frank works really hard.

- Frank is thought to work really hard.

6.

- It was believed that the thieves had run away from the bank.

- The thieves were believed to have run away from the bank.

7.

- It is said that secondary schools had a higher level some years ago.

- Secondary schools are said to have had a higher level some years ago.

8.

- It is said that planes will fly from London to New York in two hours in a few years.

- Planes are said to fly from London to New York in two hours in a few years.

9.

- It was believed that the president was at the meeting last week.

- The president was believed to be at the meeting last week.

`color{orange}{~LeAiFuRuiHuiBao~}`