Dưới đây là các câu chuyển sang câu bị động theo hai cách:

1. 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.

2. They say that John is the brightest student in class.
- It is said that John is the brightest student in class.
- John is said to be the brightest student in class.

3. I knew that they had told him of the meeting.
- It was known that he had been told of the meeting.
- He was known to have been told of the meeting.

4. They declared that she won the competition.
- It was declared that she won the competition.
- She was declared to have won the competition.

5. They rumored the man was still living.
- It was rumored that the man was still living.
- The man was rumored to be still living.

6. They reported that the troops were coming.
- It was reported that the troops were coming.
- The troops were reported to be coming.

7. People rumored that there was a ghost in that house.
- It was rumored that there was a ghost in that house.
- There was rumored to be a ghost in that house.

8. They claimed that everything they said was true.
- It was claimed that everything they said was true.
- Everything they said was claimed to be true.