The phrase "very proficient in" is correct and usable in written English.
You can use it to describe someone's high level of skill or expertise in a particular area or subject.
Example: "She is very proficient in multiple programming languages, which makes her an asset to the team."
Alternatives: "highly skilled in" or "extremely adept at".
Although some had learned other languages (N = 9), none rated themselves as very proficient in any foreign language (overall self-rated proficiency in other languages = 2.3).
"The people who teach them in English language are natives of this country who are also not very proficient in the language," he said.
I can't speak for anyone else's pantomime, but ours is all about positivity and looking at issues such as bullying, and making it clear that just because a child is not very proficient in one thing, it does not mean that they can't be very proficient in another.
Gill said McClay, who was from the Barrow area, had worked at the wildlife park for a number of years and was "very proficient" in her work with big cats.
She added, "I got the impression that he was one of those men with these intellectual abilities, he was not very proficient in dealing with people, especially the opposite sex".
I taught recently at Lisbon University on the NTS's most critically acclaimed production, Gregory Burke's Black Watch, and although the students were very proficient in English, they had to watch the DVD with the English subtitles turned on, so distinct from "standard" English is the working-class, east Scottish vernacular of the play.
I had become very proficient at figuring things out in my head.
Lifeguards and surfers, of course, are very proficient swimmers and have experience swimming in surf conditions, so most of us shouldn't intentionally enter a rip current.
French forces had suffered from Viet Minh ambushes, an attack that the latter had become very proficient at throughout the war, most notably in the annihilation of Group Mobile 42 in 1950 and of GM 100 in 1954.
Before moving to the country, Dolores was an active member of the Indoor Gardening Society in Manhattan and became very proficient at growing a wide variety of houseplants, especially succulents and bonsai gardens.
So far, most technologically proficient attackers are hackers or insiders with no terrorist intent, while the terrorists are not yet very proficient, Frank J. Cilluffo, an expert on terrorism at the Center for Strategic and International Studies in Washington, said during Congressional testimony in October.
