Here are the negative sentences:
1. They are not going to the cinema on Sunday.
2. She is not reading an interesting book now.
3. He is not playing tennis at this moment.
4. The gardener is not cutting down a tree.
5. The shopkeeper is not selling modern things.
6. My parents are not returning home.
7. Her friends are not talking about their party.
8. The pupils are not writing the test.
9. The child is not crying.