The document explains how to change sentences from active to passive voice. It states that the subject of an active sentence becomes the object of the passive sentence, and the passive is formed using "to be" plus the past participle of the main verb. Various verb tenses are shown transforming from active to passive voice, including present simple, past simple, present perfect, past perfect simple, future, and modal verbs.

1. How to make the passive

2. When we want to give more
importance to the action
instead of the person who
performs it we use the
passive voice.

3. To transform an active sentence
to passive we consider the
following points:
-The subject of a verb in passive voice
corresponds to the direct object of a verb in
active voice.
-The passive voice is formed using the verb “to
be” + the main verb participle (past
participle).
-The subject of the main sentence becomes the
complement agent of the passive.
-To say who person does the action we use “by”.

4. Examples of how to
transform the verb tenses
Verb Tense Active Voice Passive Voice
Present Simple I write a letter to Aaron A letter is written to
Aaron (by me)
Past Simple You ate some fish
yesterday
Some fish was eaten
yesterday (by you)
Present Perfect She has drunk a lot of
coffee
A lot of coffee has been
drunk by her
Past Perfect Simple John had sung an
emotional song
An emotional song had
been sung by him
Future (Will) We will take a family
picture
A family picture will be
taken by us
Future (Going to) They are going to have
a great party
A great party is going to
be had by them
Modal verb I must write a letter/ I
can write a letter/ I
should write a letter
The letter must be
written/ The letter can
be written/ The letter
should be written