I saw a penguin.
I have seen a penguin.
Did they eat breakfast?
Have they eaten breakfast?
Jennifer didn’t finish her homework.
Jennifer hasn’t finished her homework.
Did they meet the president?
Have they met the president?
No, we didn’t
No, we haven’t.
Did Roberto visit Vancouver?
Has Roberto visited Vancouver?
Yes, he did.
Yes, he has.
Mrs. Smith didn’t read the book
Mrs. Smith hasn’t read the book.
He was a teacher.
He has been a teacher.
Were you in jail? _
Have you been in jail?
. I didn’t clean my room
I haven’t cleaned my room
No, they weren’t.
No, they haven’t.
Was she sick?
Has she been sick?
Did he swim in the ocean?
Has he swum in the ocean?
They didn’t arrive.
They haven’t arrived.
Where were they?
Where have they been?
