People often take him for his brother.
He is often taken for his brother.

Someone seems to have made a terrible mistake.
A terrible mistake seems to have been made.

He recommends fitting new tires.
New tires are recommended to be fitted by him.

He suggested allowing tenants to buy their houses.
The suggestion was made by him to allow tenants to buy their houses.

It is your duty to make tea at eleven o'clock.
Tea is to be made by you at eleven o'clock.

People know that he is armed.
It is known that he is armed.

Someone has seen him pick up the gun.
He has been seen picking up the gun.

We know that you were in town on the night of the crime.
It is known that you were in town on the night of the crime.

They think that your father was a spy in the World War II.
It is thought that your father was a spy in World War II.

We believe that he has special knowledge which may be useful to the police.
It is believed that he has special knowledge which may be useful to the police.