regret的用法有regret to have done吗,有的话,和regret having done有什么区别

1。regret ding sth/that:对某事感到懊悔,遗憾I regret that you see it like that。I believe you will regret leaving Paris。3。regret to do sth。that为要做的事抱歉,遗憾I regret to say that I am unable regret to have done将来完成时regret having done:为做过的事感到后悔,抱歉