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。
你好:
i
don't
know用于一般现在时
或者表示将来要发生的事
如:
i
don't
know
what
to
do.
i
didn't
know用于一般过去时,
表示过去某一时刻发生的事情
如:
i
didn't
know
where
she
went
this
morning