How to say in Czech: How good is her Swedish?

English
How good is
Czech
Jak dobře umí švédsky?
Her Swedish is getting better.
Her Swedish is very good.
Her native language is Swedish.
Is she learning Swedish on her own?
How do you say that in Swedish?
I do not speak Swedish very well.
You speak Swedish very well.
He is learning Swedish.
He is not Swedish.
He is Swedish.

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