The crew had excellent command of English and was able to communicate to us really well.
But they admit that foreign students with a poor command of English are most at risk.
Her command of English was not up to that.
Japan is debating how to improve citizens' command of English.
Although he read widely, his command of English was inadequate.
Although she would like to work, her command of English is limited and jobs are hard to find.
But, he said, his command of English was not sufficient for him to articulate the problem.
Our spies have had little trouble gaining a command of English.
But he also said his limited command of English had reduced the company's ability to get its points across.
At this time his command of English was said to be poor.