Voice of Present Perfect Tense

Rules-

Sentence
Structure of making Present Perfect Tense
Structure of converting Present Perfect Tense (Active Voice) to Passive Voice
Positive
Sub + Has/Have + Verb (3rd form) + Obj + Extra Word.
Obj/Sub+ Has/Have + Been + Verb (3rd form) + By + Sub/Obj + Extra Word.
Negative
Sub + Has/Have + Not + Verb (3rd form) + Obj + Extra Word.
Obj/Sub+ Has/Have + Not + Been + Verb (3rd form) + By + Sub/Obj + Extra Word.
Interrogative
Has/Have + Sub + Verb (3rd form) + Obj + Extra Word?
Has/Have + Obj/Sub + Been + Verb (3rd form) + By + Sub/Obj + Extra Word?
Voice of Present Perfect Tense
Voice of Present Perfect Tense 

Examples-

Active Voice
Passive Voice
I have eaten a mango.
A mango has been eaten by me.
She has finished the work.
The work has been finished by her.
They have cheated me.
I have been cheated by them.
She has helped us.
We have been helped by her.
Ram has disturbed them.
They have been disturbed by Ram.
Someone has stolen my pen.
My pen has been stolen.
He has cut his finger.
His finger has been cut.
They have published the result.
The result has been published.