How to say in Czech: Where did he learn Dutch?

English
Where did learn
Czech
Kde se naučil holandsky?
He is learning Dutch.
Is he learning Dutch?
Is he learning Dutch on his own?
Does he speak Dutch?
He does not speak Dutch.
He does not speak Dutch very well.
He speaks Dutch.
He speaks Dutch fluently.
He speaks Dutch very well.
He speaks only a little Dutch.

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