regret 后加to do 还是 to bedoing 还是have done
regret 后加to do 还是 to bedoing 还是have done
regret的词组是doing 还是to to 还是to have done.
regret to do want to do这类动词后加to do的 是动词短语 还是动词不定式
英语:have trouble/problems/difficulty加动词ing还是to do还是done
fail to do 还是fail to have done?
sb was found后可以加do还是done,to do doing?
have no doubt后加do还是to do还是doing?
Have a good time 后加do还是to-do 还是doing
to do 还是 to be done
never后加doing还是to do
enough后加doing还是to do
suggest 后加doing 还是to do