Martha spoke fluent french.
He is a voluble speaker. (It means glib or fluent).
The adverb form of the word fluent is fluently.A example sentence is:He spoke French fluently.
She was less than fluent in her verbal skills when she lost her temper or became frustrated .
He was fluent in German.I am not so fluent in Japanese.
You can use "fluent" in a sentence like this: She is fluent in Spanish, French, and Italian, making her a valuable asset to the team.
"The American man was fluent in french"
"He spoke English, French, and Spanish fluently." "He is more fluent in German than Swedish."
I am not writing a sentence using that word.
a sentence using the word endotracheal
This is a sentence using the word aviator.
No, the word fluent is not an adverb.The word fluent is an adjective.
The word 'glib' means fluent but insincere.