The document provides examples of using "can" and "can't" to ask and answer questions about ability to play the piano. It shows question forms asking if "I", "he", or "she" can play the piano, and affirmative and negative response forms to indicate whether the subject can or cannot play the piano.

1. CAN – CAN’T
QUESTION:
Can you play the piano? Yes, I can / No, I can’t
Can he play the piano? Yes, he can / No, he can’t
Can she play the piano? Yes, she can / No, she can’t
AFFIRMATIVE:
I can play the piano.
Mark can play the piano/ He can play the piano
Maria can play the piano / She can play the piano
NEGATIVE:
I can’t play the piano.
Mark can’t play the piano/ He can’t play the piano
Maria can’t play the piano / She can’t play the piano