Form and rules
How it works
1
Form the present perfect with have/has + past participle: I have finished; she has gone.
2
Use it for life experience when you do not say a finished past time: Have you ever been to Chile?
3
Use it for a recent action with a present result: I've lost my keys, so I can't open the door.
4
Use it with unfinished time periods such as today, this week or this year when that period is still continuing.
5
Common words include ever, never, just, already and yet. Remember that been usually means visited and returned, while gone often means the person is still away.