1)1-must
2-ought to
3-neednt
4-had to
5-cant
6-have to
2)1-may
2-cant
3-must
4-should
5-must
6-may
3) 1-cant come
2-could
3-can drive
4-cant use
5-could read
6-can open
5)1-Could
2-musnt
3-can
4-couldnt
5-ought
6-must
7-couldnt
8-should
9-must
10-cant