1. Miss mai watches tv every night

miss mai doesn't watch tv every night
2. we save money every week
we don't save money every week
3. it is often cold in the  winter
it isn't cold in the winter
4. i do my homework everyday
i don't do my homework everyday
5. she likes listening to music
she doesn't like listening to music
6. mai has english class three times a week 
mai doesn 't have english 3 times a week
7. mai has lunch at school
mai doesn't have lunch at school
8. the students do a test every two week
the students don't do a test every two week
9. the doctor sometimes works late at night
the doctor sometimes doesn't work late at night