"tenses in english"

Formulas to be used while changing the sentence from Active to Passive voice

Simple Present tense

Active voice	Passive voice
He ,she it and singular=1St form+s/es I,we,you,they and plural=1st form of the verb I/s write/v a letter/o.	Is,am,are +3rd formof the verb is used(past participle) He,she,it,singular=is I=am You,we,they,plural=Are