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