How to say in Czech: Do we know each other?

English
Do know each other?
Czech
Známe se?
When was the last time we saw each other?
When will we see each other again?
To each his own.
Do we know her address?
Do we know Miss Nováková?
Do we know this boy?
He knows what we did last year.
He knows what we did yesterday.
They don’t know what we mean by that.
We do not know.

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.