1. He likes playing football.
2. He doesn't like playing football.
3. Did he like playing football?
4. My mother is cooking now.
5. Is my mother cooking now?
6. My mother isn't cooking now.
7. The best person for me is my father, he is so kind and wise.
8. Is your father the best person for you?
9. The best person for me isn't my father, he isn't kind and wise.
10. What kind of sport do you prefer?
11. What kind of sport don't you prefer?
12. I prefer volleyball.
13. His sister is singing at the moment.
14. Is his sister singing at the moment?
15. His sister isn't singing at the moment.