How to say in Czech: He speaks Swedish fluently.

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

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