Have you ever...?
Has you never see a monster?
Have you ever seen a monster?
I _____ help you. (probability)
I could help you.
Yes, she ___ gone to the U.S. many times.
She has gone to the U.S. many times.
We (go/went) to the store every day.
We go to the store every day.
She (swim) at the pool yesterday.
She swam at the pool yesterday.
Yes, I have been to Japan many times.
Have you ever been to Japan?