In the passive voice, the object of the active sentence becomes the subject, and the verb takes the form 'be + past participle' in the same tense.
1Tense patterns
Simple present: is/am/are + V3
Simple past: was/were + V3
Present/past continuous: is/are/was/were being + V3
Present/past perfect: has/have/had been + V3
Future and modals: will/can/must be + V3
Imperative: Let + object + be + V3