How to say in Czech: He speaks Polish fluently.

English
speaks fluently.
Czech
On mluví plynně polsky.
He speaks only a little Polish.
He speaks Polish.
He speaks Polish very well.
Does he speak Polish?
He does not speak Polish.
He does not speak Polish very well.
Does anybody here speak Polish?
He is learning Polish.
He is not Polish.
He is 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.