Matching Pairs Passive voice rulesOnline version Match the rules. by Tamara Lupiañez 1 Passive voice focuses 2 The doer of the action is 3 Passive sentences use a form of the verb "to be" 4 In passive voice, the subject of the sentence 5 Passive voice is often used followed by a past participle. 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 is acted upon by the verb.