Relier Pairs Passive voice rulesVersion en ligne Match the rules. par Tamara Lupiañez 1 In passive voice, the subject of the sentence 2 Passive sentences use a form of the verb "to be" 3 The doer of the action is 4 Passive voice focuses 5 Passive voice is often used is acted upon by the verb. on the action itself or the object of the action often not mentioned in passive sentences in formal writing or to emphasize the action or object rather than the doer. followed by a past participle.