How to say in Czech: Are they Polish?

English
Are
Czech
Oni jsou Poláci?
Are they learning Polish?
Are they learning Polish on their own?
They are learning Polish.
They are not Polish.
They are Polish.
Do they speak Polish?
They do not speak Polish.
They do not speak Polish very well.
They speak only a little Polish.
They speak Polish.

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.