She has the most promise of all the girls you've spoken to as for.
As far as I know, most as in [the most important thing~] functions like an adverb because important is an adjective. If so, could I say most in the sentence functions like an adjective because promise is a noun?
Yes. She has the most promise of all the girls you've spoken to as for. '
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
She has the most promise of all the girls you've spoken to as for. I think you mean 'so far.'