All tenses can use the active voice. Mamiko studied the textbook. Haru is eating the hamburger. Masaki had been helping Joe when the phone rang. Passive Voice Passive voice describes a sentence in which the subject receives the action of the verb.
All tenses can use the passive voice.
The textbook was studied by Mamiko . The hamburger was eaten by Haru . Joe had been helped by Masaki when the phone rang. Changing From Active to Passive 1. Change the direct object to the subject position in the sentence.