How to say in Czech: Are they learning Slovenian?

English
Are learning
Czech
Učí se slovinsky?
Are they learning Slovenian on their own?
They are learning Slovenian.
Where did they learn Slovenian?
Do they speak Slovenian?
They do not speak Slovenian.
They do not speak Slovenian very well.
They speak only a little Slovenian.
They speak Slovenian.
They speak Slovenian fluently.
They speak Slovenian very well.

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