Polite Requests — English Notes

For making polite requests, we use WILL, CAN and MAY. You can make them still more polite by using past tense forms of them.(i.e Would, Could, and Might).

May I ask you a question?
Might I ask you a question?( more polite)
Can you lend me your umbrella?
Could you lend me your umbrella, please? (more polite)
Can you do me a favour?
Could you do me a favour?( more polite)
Will you post this letter , please?
Would you post this letter, please?(more polite)

Polite statements :

I have a doubt about the question. I should like to have more clarifications.
I was told you have bought a new car. I would like to see your new car. When can I come?
Is the manager available now? My brother would like to see him for a few minutes.