什么时候用NOT什么时候用DON'T(DIDN'T)?but they don't realize one important thing...中为什么不能说成they are not...i am not really interested in fishing.为什么不能说成i don't.各位给我举几个例子好吗,我会再加分的

什么时候用NOT什么时候用DON'T(DIDN'T)?but they don't realize one important thing...中为什么不能说成they are not...i am not really interested in fishing.为什么不能说成i don't.各位给我举几个例子好吗,我会再加分的
什么时候用NOT什么时候用DON'T(DIDN'T)?
but they don't realize one important thing...中为什么不能说成they are not...
i am not really interested in fishing.为什么不能说成i don't.各位给我举几个例子好吗,我会再加分的.

什么时候用NOT什么时候用DON'T(DIDN'T)?but they don't realize one important thing...中为什么不能说成they are not...i am not really interested in fishing.为什么不能说成i don't.各位给我举几个例子好吗,我会再加分的
but they don't realize one important thing...don't是否定动词的,而not后直接加动词,实际上中间省略了to,也就是说not to do是否定不定式的.
例如：He don’t like reading.
He promised not to do it again.
I am not really interested in fishing.中be interest in 是固定短语,意思为：对...感兴趣.是固定用法,因此不能说成I don't.
注：学英语一定要分析词句,并不是意思对了就可以了,还有很多差异的,一定要详加区分.