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