present progressive tense - negative and affirmative

the present progressive tense
(+) S + am/is/are + present participle
(-) S + am not/isn't/aren't + present participle

1. isn't studying, is studying
2. aren't playing, are playing
3. am not drinking, am drinking
4. isn't writing, is writing
5. aren't driving, are driving
6. am not cooking, am cooking
7. isn't watching, is watching
8. aren't speaking, is speaking
9. isn't smoking, us smoking
10. isn't washing, is washing
11. aren't listening, are listening
12. aren't going, are going