PASSIVE VOICE

Passive voice is a grammatical voice in which the subject receives the action of a transitive verb, and passive refers more generally to verbs using this construction and the passages in which they are used.
The Generic Structure/Formula :

* Active : S + Vactive + O
* Passive : O + to be + V3 + by + S

Passive Voice in Tenses :
1. Simple Present Tense
· Active : V1(es/s)
· Passive : To be(is, am, are) + V3

2. Past tense
· Active : V2(ed)
· Passive : To be(was, were) + V3

3. Past Continous Tense
· Active : To be(is, am, are) + Ving
  To be(was, were) + Ving
· Passive : To be(is, am, are) + Being V3
  To be(was, were) + Being V3

4. Present Perfect Continous Tense
· Active : been + Ving
· Passive : been + being V3

5. Future Tense
· Active : Be + Ving
· Passive : Be + being V

*When you’re rewriting active sentences in Passive Voice, note to following :
1. the object of the active sentence becomes the subject of the passive sentence
2. the finite form of the verb is changed (to be + past participle)
3. the subject of the active sentence becomes by Agent in the passive sentence (or is dropped)
4. Only active sentence containing object which can be changed into passive form
5. The two forms should have the same tenses

Note :
- In Passive Voice, the subject is the object in Active Voice and the object is the subject.
- Negative Form just add ‘not’ after the to be.
- Interogative Form just move the ‘to be’ to the first, and add ‘?’ in the last.