have a good command of

1. Have the ability to use or control; have mastery of. For example, She has a remarkably good command of Japanese, or He had a good command of his emotions. [Mid-1600s]

Example Sentences

You need to have a good command of the lyrics to pull this one off.

From Los Angeles Times

Mr Yazbek says the fact that local workers have a good command of English will help the industry grow.

From BBC

For instance, many don’t have a good command of English.

From The Verge

Citizens in many counties, especially in Scandinavia, the Netherlands, Belgium, Finland, Germany and Poland, have a good command of English.

From Nature

But, to gain acceptance to C.E.U., young people had to have completed an undergraduate degree and have a good command of English.

From The New Yorker