Passive Voice.

The passive voice is used to emphasize an action rather than who or what is responsible for it.

Estructure:

Active Voice.                                          Passive Voice.

William eats cauliflower everyday.                                           Cauliflower is eaten everyday by William.

subject+verb+object                                object+verb be+past participle+(by agent)

                                                                           *the "by agent" can be omitted.

Examples:

How to conjugate the verb be in Passive Voice:

Present Simple: 

                                              is/are/am+past participle

Past Simple:

                                              was/were+past participle

Present Perfect Simple: 

                                               has/have+been+past participle

Past Perfect Simple: 

                                               had+been+past participle

Future will: 

                                               will be+past participle

Going to: 

                                               is/are/am+goint to be+past participle

Future Perfect Simple: 

                                               will+have/has+been+past participle

Present Infinitive:

                                               verb to+be+past participle

Modal Verb: 

                                               modal+be+past participle

Present Progressive:

                                               is/are+being+past participle

Past Progressive:

                                                was/were+being+past participle

-ing form:

                                                verb+being+past partciple