`1.` He is thought to have died a natural death.
`2.`Some people believe that 13 is an unlucky number.
`→`It is believed that 13 is an unlucky number.
`→`13 is believed to be an unlucky number.
`3.`It is said that John is the brightest student in class.
or John is said to be the brightest student in class.
`4.`The President was reported to have suffered a heart attack.
`5.`They were known to have told him of the meeting.
`⇒`Cấu trúc :
- Chủ động : S1 + think/believe... + that + S2 + V2
`→`Bị động :
+) Cách 1 : It is thought/believed …. + that + S2 + Vpp
+) Cách 2 : S2 + to be + thought/believed + to Vpp/ to have Vpp/ be + Ving
- Chủ động : S1 + V + that + S2 + V...
`→`Bị động :
+) Cách 1 : S + be + Vpp + to V
+) Cách 2 : It + be + Vpp + that + S + V