negative 1. I am not taking my sister to school. 2. They are 
 not going to the beach for a swim. 3. Helen is  not playing the piano. 4. I am 
 not reading a newspaper. 5. He is  not sleeping. 6. We are  not drinking tea. 7. You 
are  not looking tired today. 8. We are  not watching TV. 9. They are  not eating 
pizza. 10. My Mum is  not cooking dinner. 11. They are  not playing tennis. 12. It
 is  not raining. 13. She is  not driving to work. 14. Mary is  not studying English. 
15. You are  not working hard today. 16. My English is  not getting better. 17. 
The world is  not changing.
interrogative. 1. Am I taking my sister to school? 2. Are they going to the beach for a swim? 3. Is Helen playing the piano? 4. Am I reading a newspaper? 5. Is he sleeping? 6. Are we drinking tea? 7. Are you  looking tired today? 8. Are we  watching TV? 9. Are they eating 
pizza? 10. Is my Mum cooking dinner? 11. Are they playing tennis? 12. Is it raining? 13. Is she driving to work? 14. Is Mary studying English?
15. Are you are working hard today? 16. Is my English getting better? 17. 
Is the world changing?