How to say in Czech: Is she learning Portuguese on her own?

English
Is learning on her own?
Czech
Ona se učí portugalsky jako samouk?
Is she learning Portuguese?
She is learning Portuguese.
Where did she learn Portuguese?
Does she speak Portuguese?
She does not speak Portuguese.
She does not speak Portuguese very well.
She speaks only a little Portuguese.
She speaks Portuguese.
She speaks Portuguese fluently.
She speaks Portuguese very well.

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