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