be sorry to do...; be sorry for...辨识

be sorry to do...; be sorry for...

be sorry to do... 的意思是“对……感到难过（抱歉、遗憾）”，常用来安慰别人，以示同情。be sorry for... “为……而感到抱歉”。例如：

I'm sorry to say that I can't help you. 很遗憾，我帮不了你。

I'm sorry for him, but it's his own fault.我为他感到遗憾，不过这只能怪她自己。