Model.

She has just seen a new picture.

What have you done?

Alice: I have won a gold medal.

Bob: So have I.

Cyril: And I have not.

Alice: I haven't seen the film yet.

Bob: Neither have I.

Cyril: But I have.

Use as models .

John has left for Rome, hasn't he?

They haven't been to the exhibition so far, have they?

Have you ever travelled abroad?

1      — Yes, I have.

2      — No, I haven't.

—    Has Henry already finished his work?

1      — Yes, he has.

2      — No, he hasn't.

—    Has John attended the lecture or not?

1      — He has attended the lecture.

2      — He has not attended the lecture.

just ; V. already, never, today this week /month/ year recently lately so far up till now yet