Sentences can be written in two ways.It can be written either in Active form or in Passive form.A sentence is called Active when it begins with the performer of the action or when the subject of the sentence is the doer or actor.e.g. He said this.
But,when the sentence is begun with the object or person that the action is performed on or the subject of the sentence is acted upon,the sentence is called Passive.e.g. This was said by him.
Rules for changing the active Voice into Passive:
To change an Assertive Sentence from Active to Passive the following rules should be followed…
- The object in the Active Voice becomes subject in Passive.
- The subject in the active becomes the agent in the passive,preceded by the preposition by
- The verb is changed into the past participle form.
It can be more clarified with a diagram:
Changes of different tenses:
Two types of Interrogative Sentences are
- Inverted Question
Helping verb/modal verb+sub.+v3+by+agent
Have you done it ?
Has it been done by you?
- Specific Question
Question word+hv/mv+sub.+v3+by+agent ?
What did they do ?
What was done by them ?
Let+subject+be+past participle of verb/to +be+verb3
- Let it be done
2.Tell him to go.
- He should be told to go.
Do you know him?
- Is he known to you?
Where did you see him?
- Where was he seen by you?
Are you reading the book?
- Is the book being read by you?
They bought toys.
- Toys were bought by them.
She is cooking rice in the kitchen.
- Rice is being cooked by her in the kitchen.
My book has been lost.
- I have lost my book.
Keep your word.
- Your word should be kept.
Help the poor.
- The poor should be helped.
Shut the door.
- Let the door be shut.