There are two ways of casting a verb in the passive voice in English so as to cause the subject to be acted upon by its verb: The foremost way is by using a form of the verb to be with the "past ...

1. The voice of the verb is distinct from its tense. Don't confuse the passive voice with the past tense. (Sentence 2 happens to be in the past tense, but 3 is not; both 2 and 3 are in the passive ...

This is the person or thing doing the verb. The passive voice is made with subject + to be + past participle + by + object. Note that the active voice object becomes the passive voice subject.