enough后加doing还是to do

enough n, adj, adv, int

I have done enough! n.
I have enough money to spend. adj
I work hard enough to get a promotion. adv.

一般提到+doing + to do指动词或者一些特殊用法的短语。Enough不在此列。

一般情况下接的是to do

e.g.I don't have enough courage to have a try.(我没有足够的勇气去尝试.)

这个一般是be+enough+n./adj./adv.+to do sth.的结构

没有固定用法，跟enough没有关系，要看句子。