Use has not / hasn’t – have not / haven’t + past participle to make a negative answer in the present perfect:

I haven’t seen a worse performance than the Hohum Cultural Society’s “production” of Verdi’s “Aida” He hasn’t played the piano in 5 years.

For Yes-No questions, use the following word order:

Has / have	+ subject	+ past participle	+ rest of sentence
Have	you	seen	a worse performance than…?
Has	he	played	the piano in 5 years?

For short answers use:

-	+
Yes, he/ she/ it hasn’t.	Yes, he/she/it hasn’t.
No, I/ we/ you/ they haven’t.	No, I/ we/ you/ they haven’t

Examples :

- Have you seen a worse performance than the Hohum Cultural Society’s “production” of Verdi’s “Aida”? - No, I haven’t.

- Has he played the piano in 5 years? - Yes, he has.