We visited our grandparents last weekend.
Past simple
They had left before we arrived.
Past Perfect
I have learned many new skills this year.
Present perfect
We have studied English for three years.
Present Perfect
I had already eaten when my friends invited me out.
Past Perfect
I have never traveled abroad.
Present Perfect
She finished her project last night.
Past simple
He lost his keys yesterday.
Past Simple
She has just finished her class.
Past Perfect
The movie had started before we entered the cinema.
Past Perfect