1. My sister has a hobby.
My sister doesn't have a hobby.
2. They like my pictures.
They don't like my pictures.
3. David does karate.
David doesn't do karate.
4. My parents play tennis.
My parents don't play tennis.
5. She studies French at school.
She doesn't study French at school.
6. My grandad plays chess.
My grandad doesn't play chess.