Formal and neutral situation of English conversation

Expressions for seeking, granting and refusing permission in various situations are given below:

Formal Situations

Seeking permission : Might I have your permission to ……
With your permission I should like to…
Would it be all right if I …………

Granting permission: Permission is granted ……….
We are pleased to permit …..
Refusing permission : I’m afraid we couldn’t allow.
I’m afraid we don’t have the authority.
Informal Situations

Seeking permission : Any chance of borrowing …….
Mind if I borrow ……..
All right if I use …………..

Granting permission : It’s OK / fine / all right
Go ahead.
Of course, you can.
Refusing permission : I’d like to, but I can’t ….
I can’t possibly.
Sorry that’s not on.
No way, I’m afraid

Neutral Situations

Seeking permission : Would it be possible ………..?
I wonder if you could ………
Do you mind if ……….. ?
Granting permission: By all means do ……..
Please don’t hesitate.
Yes, certainly, you can.
Refusing permission : I don’t really think you can.
I’m afraid that’s not possible.
I’m sorry I’m not supposed to allow…..