1. I am sorry. 对不起。
2. Never mind. 没关系。
3. excuse me. 请原谅.
4. i'm so sorry. 很抱歉.
5. i'm awfully sorry. 非常抱歉.
6. i'm terribly sorry about that. 为此我非常抱歉.
7. i apologize. 我道歉.
8. my apologies. 我道歉.
9. please forgive me. 请原谅.
10. i hope you will excuse me. 希望你能原谅我.
11. i can't tell you how sorry i am. 我真的是很抱歉.