Helpingverbs are changed according to the following chart. Chart of helping verbs used in active voice and passive voice. TENSE ACTIVE PASSIVE Present Indefinite Do, does or (s, es) Is, are, am Present Continuous Is, are, am Is being, am being, are being Present Perfect Has, have Has been, have been Past Indefinite Did or 2nd
Objectof the active sentence + has/have + been + past participle form of the verb + by + subject of the active sentence Changing an assertive sentence into the passive Active: I have written a story. Passive: A story has been written by me. Active: They have built a house. Passive: A house has been built by them. Active: He has broken my window.
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future perfect tense active and passive voice formula
