Poficient & proficiency

Are the two above sentence okay?!

Generally, one demonstrates proficiency more than having proficiency.

I prefer the one with "proficient."

Anonymous, you might have asked in more polite way.

He's never been profici

Grammar GeekGenerally, one demonstrates proficiency more than having proficiency.

I prefer the one with "proficient."

Is the second one possible the way I wrote? Thank you, GG.

Many things are possible.

It could make sense as part of a dialogue, for example.

A: Ah James. He's so talented.
B: Are we talking about the same James? James Pewterschmidt?
A: Oh yes. He demonstrated such proficiency at the piano last night, and the night before on the cello
B: There must be two James Pewterschmidts, then, because the guy I know has never had a profi

I got it. Thank you.

I'm so sorry! I didn't mean to sound impolite.

I was just in a hurry!

Forgot to say :

Thanks a lot GrammarGreek! All understood now.

You're welcome

I think I've heard, "When you acquire more proficiency we might be able to use you."