The general principles to change the sentence into a sentence, Active Voice Passive Voice
1. To take the direct object of a sentence Active Voice to object in a sentence Passive Voice by preposition by "front."
2. To take the direct object of a sentence Active Voice became president in the sentence, Passive Voice
3 verb of the sentence. Active Voice. When used in a sentence Passive Voice must be a verb form channels that 3 (Past Participle) and after. Verb to be is is am are was, were be being been which is used Verb to be any body have to see tense.