PASSIVE VOICE

En este enlace encontraréis montones de ejercicios de la voz pasiva:

http://www.ego4u.com/en/cram-up/grammar/passive

http://www.aprenderinglesfacil.es/2009/01/passive-voice-voz-pasiva.html

Tiempo Verbal de la oración en voz activa	VOZ ACTIVA	VOZ PASIVA
Presente Simple	My brother studies the lesson.	The lesson is studied by my brother.
Presente Continuo	My brother is studying the lesson.	The lesson is being studied by my brother.
Pasado Simple	My brother studied the lesson.	The lesson was studied by my brother.
Pasado Continuo	My brother was studying the lesson.	The lesson was being studied by my brother.
Futuro Simple	My brother will study the lesson.	The lesson will be studied by my brother.
Futuro Cercano	My brother is going to study the lesson.	The lesson is going to be studied by my brother.
Presente Perfecto	My brother has studied the lesson.	The lesson has been studied by my brother.
Pasado Perfecto	My brother had studied the lesson.	The lesson had been studied by my brother.