In the example above, the verb “see” is in the present perfect tense. “Seen” is the past participle for the verb “see.”

When you begin a question with “have” or “has,” the answer is usually yes or no.

Have I ever met you?

(Your answer:

Yes, you have. / No, you haven’t.)

Have you lived in the United States long?

(Answer: No, I haven’t. / Yes, I have.)

Has he had any coffee yet this morning?

(Answer: No, he hasn’t.)

Has she ridden a bike before?

(Answer: Yes, she has.)

Has the goat eaten anything yet today?

(Answer: No, it hasn’t.)

Have we known each other for a long time?

(Answer: No, we haven’t. We’ve known each other for a short time.)

I + you = we

Have you ever traveled to China?

(Answer: No, we haven’t.)

Have they marched in this parade before?

(Answer: No, they haven’t, but they have marched in other parades.)