Present Perfect Simple

have/has + past participle

I, you, we, they HAVE

he, she, it HAS

regular verbs +  –ed / -d

(liked, walked, worked, talked...)

irregular verbs – memorize the 3rd column of irregular verbs

(been, seen, had, eaten, written...)

to tell what you have done recently/ lately

to tell what you have just or already done

to tell what you have never/ ever done

to tell what you have done so far/ up to now

to tell what you have done today/ this week/ this month/ this year

actions that started in the past and have continued into the present

when the precise time of the action is not important or unknown