1) Have been boiling
2)has been waiting
3)has been sending
4) have been trying
5) have been learning
6)has been drilling
7) has been playing
8)have been listening
9) hasn't been taking
10)have been saving
1) Have been boiling
2)has been waiting
3)has been sending
4) have been trying
5) have been learning
6)has been drilling
7) has been playing
8)have been listening
9) hasn't been taking
10)have been saving