be (in the correct tense) + past participle
| Tense | Active | Passive |
|---|---|---|
| Present Simple | They make cars here. | Cars are made here. |
| Past Simple | Someone stole my bike. | My bike was stolen. |
| Present Continuous | They are building a hotel. | A hotel is being built. |
| Past Continuous | They were filming a scene. | A scene was being filmed. |
| Present Perfect | They have cancelled the flight. | The flight has been cancelled. |
| Future: will | They will open a new school. | A new school will be opened. |
| Modal | You must switch off your phone. | Your phone must be switched off. |
To mention the agent, use by:
The Mona Lisa was painted by Leonardo da Vinci.