"proficient enough to" is correct and usable in written English.
You can use it to indicate that someone has the necessary qualifications or abilities to do something. For example: "He has the experience and skills necessary to do the job, he is proficient enough to succeed."
The percentages at or above baseline (level II) and norm (level III) proficiency give us an idea of how many students are proficient enough to successfully compete in an English-speaking globalized society: Over 80% of native speakers scored at or above baseline proficiency, in our sample of non-native speakers the percentage was 56.8%.
(Dunsany was proficient enough to play Capablanca, the Cuban world champion, to a draw).
Eventually, she became proficient enough to take geography, ecology and history in French.
John Skelton (and, in the back end of the fourth quarter, Kevin Kolb) were proficient enough to take advantage.
And it will take years before China's military is proficient enough to use the high-tech weapons effectively.
He says he is not "technically proficient enough" to know whether this can be extended to other technologies.
He found that Lincoln's handwriting came easiest to him, and by 1931 he had become proficient enough at imitating it to forge "Yrs.
According to a survey by the European Comission, 44% of respondents from Finland who did not have Swedish as a native language considered themselves to be proficient enough in Swedish to hold a conversation, for a total of about 5 million second-language speakers.
A chief math objective for Connecticut students is that, by the end of 12th grade, they will be proficient enough in math to apply a range of numerical concepts to analyze and solve real-world problems.
Voltaire also came to know the other Newtonians in Clarke's circle, and since he became proficient enough with English to write letters and even fiction in the language, it is very likely that he immersed himself in their writings as well.
The pathway to higher education can be blocked for some would-be students because they are not proficient enough in English to succeed in a traditional college.
