Could you . . . . (for me) ?

Would you please . . . ?

Would you mind V+ing . . . .?

Could you possibly . . . ?

Okay, no problem.

Sure, I'd be glad to.

Sorry, I'm (kind of) busy now.

I'm sorry. I don't have time right now.

Do you have a minute?

Can you spare a few minutes?

Could you do me a favor?

Could I ask you a favor?

Can I ask you to . . . ?

I need some help (if you have time).

(If you're not busy) I could use your help.