How to say in Czech: Do they understand her?

English
Do understand
Option 1 Option 2
Czech
Rozumějí jí?
They do not understand her.
They understand her.
Nobody understands her.
Nobody understands her here.
Do they understand?
They do not understand.
They do not understand this at all.
They do not understand this word.
They do not understand what the problem is.
That’s something they will never understand.

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