Bonsoir :)
Réponse en explications étape par étape :
- Question : When do we use present perfect ?
We use present perfect to talk about :
- Action(s) that took place in the past and it/they may have result/effect in the present.
====> Exemple : My father has bought a new car.
- Action(s) that started in the past and continue until the present time.
====> Exemple : My parents have been married for 13 years.
- Experiences.
====> Exemple : She has won a prize before.
Voilà
