jak powiedzieć?

jak powiedzieć: Mam do ciebie wielką prośbę.

Could you do me a favour?

a czy może być też taki zwrot: I have favour to ask of you

mozesz powiedziec : I have a big request for you, could you....
albo: I want to ask you about something, would you be so nice and....

te dwa wyrazenia troche bardziej oficjalne

I have A favour....

favour to bardziej przysługa a nie prośba, choć często pewnie wychodzi na to samo.

>>>: I have a big request for you, could you....
albo: I want to ask you about something, would you be so nice and....
- lepiej...I have a big request TO ASK OF YOU, could you...
I want to ask you something, would you be so KIND as to...