:
2
Useful, useless; muddy, playful, manageable, Japanese, peaceful, reddish, dirty, courageous, helpful, helpless; Polish, painful, painless; windy, windless; Russian, brainless, brainy
3
1) to tell
2) sleep
3) to ask, to get
4) change
5) to meet
6) to work, to be, to enter
7) know
8) finish
4
1) at, at, in
2) at, of
3) for
4) in
5) on, on
6) to, on
7) about
8) with, for