How to say in Czech: My native language is Swedish.

English
native language is
Czech
Můj rodný jazyk je švédština.
Swedish is a difficult language.
My Swedish is getting better.
My Swedish is very good.
How good is your Swedish?
He is learning Swedish.
He is not Swedish.
He is Swedish.
Is he learning Swedish?
Is he learning Swedish on his own?
Is he Swedish?

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