PRESENT PERFECT present-perfect (USE (To talk about life…
To talk about life experiences
I have never been to Ecuador
To talk about recent events
She has just left!
has or have
She has been to the supermarket already.
They have finished their job recently.
David hasn't written a book yet.
(has or have) + NOT
Aaron has not swum in the ocean.
We have not learned to drive yet.
Carla has not told the thruth.
Start with auxiliars
Have you ever won a prize?
Has David danced with her already?
E.g. Have you washed the dishes already?