HAVE / HAS + PAST PARTICIPLE
The Present Perfect He HAS just FOUND A four-leaf clover. THE PRESENT PERFECT
Form of the Present Perfect I You We They Positive have + past participle(3) Negative have not + past participle Question Have + Subject + past participle He She It has + past participle has not + past participle Has + Subject + past participle
EXAMPLES AFFIRMATIVE: He HAS BOUGHT a skateboard. INTERROGATIVE: HAS Bart BOUGHT a bike? NEGATIVE: He HASN´T bOUGHT a bike, he has bought a skateboard,
PAST PARTICIPLES For regula r verbs, just add ed. He has finish ED. For irregular verbs, use the participle form (see LIST OF IRREGULAR VERBS, 3rd column). LIST OF IRREGULAR VERBS They have EATEN
Use of Present Perfect Action still going on : School has not start ed yet. Action that stopped recently : She has cook ed dinner.
Use of Present Perfect Finished action that has an influence on the present : I have lost my key. Action that has taken place once, never or several times before the moment of speaking : I have never been to Australia
Signal Words of Present Perfect Already Ever Just Never Yet / Not yet For Since So far Till now Up to now