This document discusses the passive voice in English. It defines the passive voice as using a form of "to be" plus the past participle of the main verb. The passive voice is used when the agent performing the action is unknown or unimportant. The document provides examples of transforming active voice sentences to the passive voice and examples of passive voice constructions in different tenses. It also explains the structure of a passive voice sentence and the steps to transform an active sentence to the passive.

1. PASSIVE VOICE
 -Uses.
 -Estructure.
 -Active to passive transformation.
 -Sentences as examples.
 Jose Luis Bernal Navarrete

2. USES
Passive voice has two uses:
 1- We use the passive voice when we don’t know who performed
the action or when we don’t want to say who performed the action.
Example: A man was killed.
 2- We use the passive voice when we want to give more
importance to the action instead of who performed the action.
Example: The book was delivered yesterday.

3. STRUCTURE
Passive voice is made with:
 -Subject.
 -Auxiliar verb (to be). This verb go in the same tense as the verb in
the active voice.
 -Main verb in the past participle.
Let’s see some examples with a few tenses.

4. -Present Simple:
 Speak/s --- am/are/is + spoken
-Past simple:
 Killed --- was/were killed
-Present Perfect:
 Have/has eaten --- have/has been eaten

5. -Past Perfect Simple:
 Had felt --- had been felt
-Future with will:
 Will paint --- will be painted
-Going to future:
 Am/are/is going to make --- am/are/is going to be made

6. -Modal verbs:
 Can solve --- can be solved
 Must solve --- must be solved
 Should solve --- should be solved

7. ACTIVE TO PASSIVE
TRANSFORMATION
To change an active sentence into a passive sentence, we have to
follow some points. We are going to take an example.
George Martin wrote the book.

8.  First, the object of the active voice sentence is now the subject:
Active: George Martin wrote the book.
Passive: The book…

9.  Secondly, the auxiliary verb “to be” is added, in the same tense as
the main verb in the active sentence, with the past participle form of
the main verb.
Active: Gearge Martin wrote the book.
Passive: The book was (“To be” in past simple) written…

10.  Finally, the subject in active sentence changes into the complement
agent in the passive sentence, and it’s precedded by “by”.
Active: George Martin wrote the book.
Passive: The book was written by George Martin.

11. SOME EXAMPLES
Now we have some sentences in the active and passive voice as
examples:
1-
Active: Mario writes a letter.
Passive: A letter is written by Mario.

12. 2-
Active: I studied English
Passive: English was studied by me.
3-
Active: Paco has taken a gun.
Passive: A gun has been taken by Paco.

13. 4-
Active: Mark will ride a bike.
Passive: A bike will be ridden by Mark.
5-
Active: Antonio can hear the noise.
Passive: The noise can be heard by antonio.

14. The End