passive voice
The Passive Voice -The passive of an active tense is formed by putting the verb to be into the same tense as the active verb and adding the past participle of the active verb: My grand father planted this tree -This tree was planted by my grand father -The subject of the active verb" my grand father" becomes the agent of the passive verb. ... Eg: by my grand father Only transitive verbs(verbs that are followed by an object) are used in the passive: - -Marry helps John -John is helped by Marry -It is not possible to use verbs such as happen, sleep, come, and seen (intransitive verbs) in the passive: Marry sleeps a lot.