一个介词的用法一般来讲,介词后加动词时要用动名词(doing),但except好像不是.最好每一条给1-2个例句.

除…之外；除外；除…之外：
everyone except me.
除我之处的所有人
conj.（连接词）
If it were not for the fact that; only:
如果不是；除…之外：
I would buy the suit,except that it costs too much.
如果不是它售价太高的话,我本想买下那件衣服
Otherwise than:
除此以外：
They didn't open their mouths except to complain.
除了抱怨他们从不开口