1. People know that cars pollute the environment.
→ It is known that cars pollute the environment.
→ Cars are known to pollute the environment.
2. People believe that the robber has worked in the bank.
→ It is believed that the robber has worked in the bank.
→ The robber is believed to have worked in the bank.
3. Many people believe that she is an honest person.
→ It is believed that she is an honest person.
→ She is believed to be an honest person.
4. They think that the president will arrive soon.
→ It is thought that the president will arrive soon.
→ The president is thought to arrive soon.
5. It is reported that many passengers died in the crash.
→ People report that many passengers died in the crash.
→ Many passengers are reported to have died in the crash.
Cấu trúc : People/ they + say/think/believe... + (that) + S + V
→  It is/was said….. that + S + V
→ S + am/is/are/was/were + said + toV + O (cùng thì)
                                                           + to have + V3/ed + O (trước thì)