Question

How to use passive voice

Answer 1

While converting from Active to passive voice we have to consider some things in mind:

1. The object of the sentence become subject of the sentence in passive voice.
2. The verb is changed to past participle form.
3. sometime while converting the object is dropped.

Answer 2

The verb that expresses that the action is carried out by the subject is said to be in active voice. 

The verb that expresses what is done to the subject is said to be in the passive voice.

Rule to change active to passive voice:

i) The positions of the subject and the object of the verb are interchanged. The subject of the verb in the active voice is made the object of the verb in the passive voice.

ii) In the passive voice, the preposition by is added before the object.

We use the passive voice when-

1) the person or thing acted upon is to be made prominent. The passive voice is thus preferred when the active form would involve the use of a vague pronoun or noun such as somebody, they, people, anybody as the example. For example- My book has been stolen.

2) the doer is not known or when it is not intended to name the doer. For example- The victim was carried out.

3) we wish to focus on the person or the thing acted upon rather than the doer agent. For example- The building was destroyed by lightning.

4) when the subject in the active voice is implied from the context. For example- The city has been captured.