German phrase
Möchten Sie, dass ich ~?
Meaning
Would you like me to ___?
When to use it
A polite offer to help. It checks whether the other person wants you to act.
Example dialogue
Möchten Sie, dass ich das Formular für Sie ausfülle?
Would you like me to fill out the form for you?
Ja, bitte, das wäre sehr nett.
Yes, please, that would be very kind.