ironic
Yes, I am proficient in both spoken and written English.
You will answer fluently. You might even answer eloquently.
Spoken language is characterized by the proficiency of the speaker. The characterization begins with 0 which indicates that the speaker is not proficient at all.
Not only can I carry on fluently and intelligently in English, my written skills are above average as well.
with
That is the correct spelling of "proficient" (capable, qualified).
He was proficient in arts and crafts
Applicants must be proficient in Microsoft Word and Excel. he's a highly proficient diver.
No it does not. Proficient means average, and advanced is advanced.
Is 90% advance or proficient
The learner driver was classed as proficient in driving their car
Advanced. In school proficient is a B and advanced is an A