COURTESY

Thank you.

You're welcome! (a polite way of replying to someone who has just thanked you for something)

Thank you very much.

You're welcome! (a polite way of replying to someone who has just thanked you for something)

Excuse me. Pardon me. Sorry.

I'm very sorry about that.

Sorry I'm late. I'm sorry I'm late. I'm sorry for the delay.

Never mind. Don't worry about it.

No problem.

That's all right. It doesn't matter.

No problem. All right. Don't worry about it.

After you. Go ahead. (When you ask someone to go through a door before you, or to do something before you.)

Excuse me, can I get past? Excuse me, can I get by?

Excuse me, may I ask you something? Excuse me, may I ask you a question?