How to say in Czech: His Slovak is very good.

English
is very good.
Czech
Jeho slovenština je velmi dobrá.
I do not speak Slovak very well.
You speak Slovak very well.
His Slovak is getting better.
How good is his Slovak?
His native language is Slovak.
Is he learning Slovak on his own?
He is learning Slovak.
He is not Slovak.
He is Slovak.
Is he learning Slovak?

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