How to say in Czech: Portuguese is a difficult language.

English
is a language.
Czech
portugalština je těžký jazyk.
Portuguese is difficult.
Her native language is Portuguese.
I speak only a little Portuguese.
How good is your Portuguese?
Your Portuguese is getting better.
Your Portuguese is very good.
He is learning Portuguese.
Is he learning Portuguese?
Is he learning Portuguese on his own?
Do you speak Portuguese?

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