How to say in Czech: They do not speak Latvian very well.

English
do not speak very well.
Czech
Oni nemluví moc dobře lotyšsky.
They speak Latvian very well.
They do not speak Latvian.
Do they speak Latvian?
They speak Latvian.
They speak Latvian fluently.
They speak only a little Latvian.
Does anybody here speak Latvian?
Your Latvian is very good.
Your Latvian is getting better.
How good is your Latvian?

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