Asking for and giving permission

Asking for Permission:

• Can I go out, please?
• May I open the window, please?
• Please, can I have a look at your photo album?
• Please, may I taste that hot spicy couscous dish?
• Do you mind if I smoke?

Giving Permission:

• Yes, please do.
• Sure, go ahead.
• Sure.
• No problem.
• Please feel free.

Refusing to give permission:

• No, please don’t.
• I’m sorry, but that’s not possible.
• I'm afraid, but you can't.