1 read
2 don t read
3 i ' m writing
4 I ' m not writing
5 they are playing
6 they aren t playing
7 Are they playing
8 helps
9 does he help
10 he doesn t help
11 do you go
12 doesnt like
13 I m not reading
14 is he sleeping
15 don t go
16 eats
17 isn t eating
18 do
19 don t go
20 doesn t work
21 he works