1. They are playing the piano.- They aren\'t playing the piano. 2. I am talking. - I am not talking. 3. He is writing.- He isn\'t writing. 4.She is dancing. - She isn\'t dancing. 5.We are jumping.- We are not jumping. 6. She is walking. - She is not walking. 7.We are watching TV. - We aren\'t watching TV. 8.You are driving a car. - You are not driving a car. 9.I am reading. - I am not reading. 10.He is making a sand castle. - He isn\'t making a sand castle. 11. They are painting a picture. - They aren\'t painting a picture. 12. You are singing a song. - You are not singing a song.