Question

глагол to be во всех временах (если можно с примерами)

Answer 1

прошедшее время- was, were
настоящее время- am, is, are
будующее время- will, shall

Answer 2

Present Simple - am/is/are.
He is a doctor.

Past Simple - was/were.
She was in the school.

Past Perfect - been.
We had been in the shop.