1. Passive voice We only use the passive when we are interested in the object or when we do not know who caused the action. We can only form a passive sentence from an active sentence when there is an object in the active sentence.

3. Passive voice in simple present tense Form: (To be) Is/are + past participle

4. Passive voice in simple past tense Form: To be (was/were) + past participle

5. Passive voice in present perfect tense Form: Has/have + been + past participle

6. Passive voice with future simple tense Form: Will + be + past participle

7. Passive voice with modals Form: Can + be + past participle