Complete the sentences with negative form of verb to be.

1. Bella is not my sister. 2. She is not my mother. 3. I am not your brother. 4. Kevin is not her son. 5. Bill is not rich. 6. We are not cousins. 7. He is not your father. 8. That flower is not red. 9. They are not in my house. 10. It is not sunny today. 11. You are not American. 12. I am not very fat.