Passive Voice of Present perfect tense

PRESENT PERFECT TENSE

Note; if we want to change the simple sentence of present perfect tense from active voice to passive then we will put the helping verbs of present perfect continuous tens in passive voice sentences.

For example;

Active Voice	Passive Voice
She has completed her work.	Her worked has been completed by her.
I have used the mobile.	The mobile has been used by me.
They have won price.	Price has been won by them.
Ali has bought computer and mobile.	Computer and mobile have been bought by Ali.

Negative Sentences

NOTE; If we want to change the negative sentences of present perfect tense from active voice to passive voice then first we will put the subject and after subject we will put have/has and after have/has we will add not been in passive voice sentences.

 For example;

Active Voice	Passive Voice
We have not arrested him.	He has not been arrested by us.
She has not insulted them.	They have not been insulted by her.
I have not completed my work.	My work has not been completed by me.
Ali has not written a latter.	A latter has not been written by Ali.

Interrogative Sentences

NOTE; if we want to change the interrogative sentences of present perfect tense from active voice to passive voice then first we will put has/have and after has/have we will put subject and after subject we will add been in passive voice sentences.

For example;

Active Voice	Passive Voice
Has he killed them?	Have they been killed by him?
Have you watched television?	Has television been watched by you?
Has she learned computer?	Has computer been learned by her?
Have I thought them in school?	Have they been thought by me in school?

FORMAIL SENTENCES;

Note; if we want to change formal sentences of present perfect tense from active voice to passive voice then first we will put has, have and after that subject and after subject we will add not been in passive voice sentences.

For example;

Active Voice	Passive Voice
Has he not completed his homework?	Has his work has not been completed by him.
Have you not killed her?	Has she not been killed by you?
Has she not cooked food for us?	Has food not been cooked by her for us?
Have I not learned computer?	Has computer not been learned by me?

    INFORMAIL SENTENCES;

Note; if we want to change in formal sentences of present perfect tense from active voice to passive voice then first we will put has, have and after has. Have we will put not and after that we will put subject and after subject we will put been in passive voice sentences.

For example;

Active Voice	Passive Voice
Have not you broken the wall?	Has not wall been broken by you?
Has not she killed them?	Have not they been killed by her?
Have not we beaten him?	Has not he been beaten by us?
Have not we noted them?	Have not they been noted by us?