How to say in Czech: He speaks Ukrainian fluently.

English
speaks fluently.
Czech
On mluví plynně ukrajinsky.
He speaks only a little Ukrainian.
He speaks Ukrainian.
He speaks Ukrainian very well.
Does he speak Ukrainian?
He does not speak Ukrainian.
He does not speak Ukrainian very well.
Does anybody here speak Ukrainian?
He is learning Ukrainian.
He is not Ukrainian.
He is Ukrainian.

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