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