1.He doesn't drink enough water.
2.He's going to stay at home because he is too tired.
3.Do you have enough money?
4.Are those shoes big enough?
5.She can't watch the film because she's not old enough.
6.I can't run very far because I'm not fit enough.
7.My dad's always at work.He works too hard.
8.I wanted to join the football team but they had enough players.