Passive Voice

Present tense
John wrote a book.
A book is written by John.

Past tense
John wrote a book
A book was written by John.

Present perfect
John has written a book.
A book has been written by John.

Past perfect
John had written a book
A book had been written by John

Present Progressive
John is writing a book
A book is being written by John

Past progressive
John was writing a book
A book was being written by John.

Futuro will
John will write a book.
A book will be written by John.

Futuro Going to
Jonh is going to write a book
A book is going to be write by John