Present Perfect (Positive)
I/You/We/They + have + verb3/or ed + остальные слова
He/She/It + has + verb3/or ed + остальные слова
For example:
I have done my homework.
She has broken her arm.
He has lost his keys.
I have cut my finger.
The car has broken.
Present Perfect (Negative)
I/You/We/They + have not (haven't) + verb3/or ed + остальные слова
He/She/It + has not (hasn't) + verb3/or ed + остальные слова
For example:
I haven't cut my finger.
The car hasn't broken.
Present Perfect (Questions)
Have + I/You/We/They + verb3/or ed + остальные слова
Has + He/She/It + verb3/or ed + остальные слова
For example:
Have I done my homework?
Has she broken her leg?
Надеюсь, объяснила доступно ;)))