N2

1) Are doing

2)Are watching; were playing

3)Was giving

4) Will lying

5)Will do

6) Isn't watching; Is sleeping ; is

7) Was doing

8) Is singing

N3

1) Was

2) Was

3) Will not = won't

4) Are

5) Are; I'am

N4

1)Answered

2)Plays

3)Gathers

4) Burned

5) Will finish

6) Sell

7) Was founded

8)Eats

9)received