Use the present perfect tense to talk about happenings in the past that explain or affect the present. The verbs have and has are used as “helping” or auxiliary verbs to form the present perfect tense.
Sam has scored two goals.
I’ve just finished my shower.
Uncle Tom has lost his wallet.
John has gone out.
The Lees have moved to Ohio.
It has not rained for months.
Have you found your keys yet?
Tim has made two spelling mistakes.
They have opened a new shop.
Kaynak: Basic English Grammer Book1
belgesi-1684
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