1.The earth was believed to be flat
It was believed that the earth was flat
2. The passengers were feared to be killed
It was feared that all passengers were killed
3. The plan is understood to have failed .
It was understood that the plan had failed
4. She was known to be telling the truth.
It was known that she was telling the truth
5. He is expected to go to university
It is expected that he will go to university
