"May I offer you an ice cream?"
Translation:Est-ce que je peux vous offrir une glace ?
I understood that the use of the conditional to express 'may' was acceptable - when being extremely polite. Duo refused this when I suggested 'pourrais-je t'offrir...'
Hi!:) I will try my best to explain the difference between "proposer" and "offrir" ...
Offrir- It's when you give a thing to a person which is free, it's a gift. (May I offer you a drink ?)
Proposer- It's not necessary free, it's a proposition. (" May I offer you to go to cinema? " or " He offered her a ring, she refused "