Apologizing

Here are the expressions used to apologize and their responses (from the more formal to less formal expression):

APOLOGY	RESPONSE
Forgive me. I’m terribly sorry about … Please accept my apology for … Please excuse … (e.g., my cat) I would like to apologize for … I apologize for … I’m sorry. I didn’t mean to … I’m sorry that … Sorry…	That’s quite all right I completely understand You don’t need to apologize. Oh, that’s all right. It can happen to anyone. It’s not your fault. Don’t worry about it It’s OK No problem. Forget it.