Active voice and passive voice

Active voice =is when a person performs an action directly, or when the stock falls    directly on such person.

example:

 He visits the park every day.

We  sing a song.

 Passive voice =is when a person receives the action or indirect action in the person rests.

 Para construir la voz pasiva =  (to be + acción en pasado. P.)

Example with simple present:

Voz  activa) the hunter chases the tiger.

Voz  pasiva) the tiger is chased by him.

With present progressive:

Activa) he is chasing the tiger.

Pasiva) the tiger is being chased by him.

With simple past:

A) He chased the tiger.

P) the tiger was chased by him.

With past progressive:

A) He was chasing the tiger.

P) the tiger was being chased by him.

With simple future:

A) He will chase the tiger.

P) the tiger will be chased by him.

With idiomatic future:

A) He is going to chase the tiger.

P) the tiger is going to be chased by him.

With modals or auxiliary verbs:

A) I should study french.

P) french should be studied by me.

A) I must do my duties.

P) duties must be done by me.

With present perfect:

A) He has chased the tiger.

P) the tiger has been chased by him.

With past perfect:

A) He had chased the tiger.

P) the tiger had been chased by him.