1、I beg your pardon -- I did not hear what you said.
請再說一遍——我沒聽見你說的話。

2、I beg your pardon for my behavior this morning.
對今天早上的行為，我請你原諒。

3、I beg your pardon for being so late.
對不起，我來遲了。

4、I do beg your pardon for the mess I have made.
我把事情高得一團(tuán)糟，一定得請您原諒。

5、I beg your pardon (but would you repeat what you said)?
對不起，請你再講一遍好嗎?

Beg your pardon翻譯