How to say in Czech: Do they speak Arabic?

English
Do speak
Czech
Mluví arabsky?
They do not speak Arabic.
They do not speak Arabic very well.
They speak Arabic.
They speak Arabic fluently.
They speak Arabic very well.
They speak only a little Arabic.
Does anybody here speak Arabic?
Where did they learn Arabic?
Are they learning Arabic?
Are they learning Arabic on their own?

Czech phrasebook and translator with tens of thousands of sentences translated by humans. Czechslator is being developed by Michal Měchura. CREDITS Czechslator's sentence generation engine is partially based on Grammatical Framework. All Czech pronunciation is computer-generated using Microsoft Azure Text to Speech. When Czechslator cannot find a translation in its own database, it looks in the PanLex dictionary or obtains a machine translation from Microsoft Translator. PRIVACY Czechslator does not save any cookies in your web browser and does not collect personally identifiable data. Czechslator uses StatCounter for traffic analysis, configured not to save any cookies in your web browser and not to collect any personally identifiable data.