1. It was believed that the fire was caused by a short circuit in
the lift machinery.
⇒ A short circuit in the lift machine was believed to have
caused the fire.
2. It was decided that their marriage would be organised
in December.
⇒ Their marroage was decided to have been organised in
December.
3. People know that she is a good swimmer.
⇒ It is known that she is a good swimmer.
4. They say that Francis is in hospital.
⇒ It is said that Francis is in hospital.
5. They think that the children are in bed.
⇒ It is thought that the children are in bed.
6. People believe that the robber has worked in the bank.
⇒ It is believed that the robber has worked in the bank.
7. People believe that nuclear power stations are dangerous.
⇒ It is believed that nuclear powere stations are dangerous.
8. His colleagues thought that he was on holiday.
⇒ It is thought that he was on holiday by his colleagues.
9. People know that cars pollute the environment.
⇒ It is known that cars pollute the inviroment.
10. They suppose that the new product will come out soon.
⇒ It is supposed that the new product will come
out soon.
11. They found that the mission was impossible.
⇒ The mission was found to be impossible.
12. They believe that she will win a gold medal.
⇒ She is believed to win a gold medal.
13. We know that the expedition reached the South Pole in May.
⇒ The expedition is known to have reached the South Pole
in May.
14. People believe that the company is losing a lot of money.
⇒ The company is believed to have lost a lot of money.
15. People believed that the earth stood still.
⇒ The earth is believed to have stood still.
16. People believe that 13 is an unlucky number.
⇒ It is believed that 13 is an unlucky number.
17. They rumored that man was still living.
⇒ It is rumored that the man was still living.