be sorrry for……因为……而对不起 , be sorry about关于……而对不起 ,be sorry that+句子。 I'm sorry for the mistake. 对这个错误我感到抱歉。（错误是说话人自己犯的） I'm sorry about the bad news. 关于这个坏消息我感到抱歉。（说话人是出于同情） I'm sorry that I'm late. 对不起，我又迟到了。
1) be sorry for: I am sorry for keeping you waiting for so long time. 2) be sorry about I am sorry about the mistakes I have made . 3)be sorry that She was sorry that she lost the ring he gave her as the birthday present.