1)

2-are

3-isn't

4-isn't

5-aren't

6-are

2)

2-am speaking

3-is singing

4-are walking

5-are doing

3)после глагола (is или are) ставь not

5)прибавляй окончание ing ко все словам

6)2- does she play

3-they  don't go

4-are you using

5-he always has

6-we are not winning

7-rachel never does

8-my cat is sleeping