How to say in Czech: Is he learning French on his own?

English
Is learning on his own?
Czech
On se učí francouzsky jako samouk?
He is learning French.
Is he learning French?
Where did he learn French?
His French is getting better.
His French is very good.
His native language is French.
How good is his French?
He is French.
He is not French.
Is he French?

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