Developing vocabulary al Write the noun form of these words.
1 concentrate (V)
2 describe (V)
3 argue (V)
4 independent (adjective)
5 discuss (V)
6 improve (W)
7 retire (V)
8 move (V)
9 adolescent (adjective)
10 inform (V)
11 different (adjective)
12 confident (adjective)