How to say in Czech: Their Slovenian is very good.

English
is very good.
Czech
Jejich slovinština je velmi dobrá.
I do not speak Slovenian very well.
You speak Slovenian very well.
How good is their Slovenian?
Their Slovenian is getting better.
Their native language is Slovenian.
Are they learning Slovenian on their own?
He is learning Slovenian.
Is he learning Slovenian?
Slovenian is a difficult language.
Slovenian is difficult.

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