Wist not; knew not.
Source: Webster's dictionaryAn additional nonstandard but widespread use of a singular participle combined with a plural auxiliary verb (known as polvikanje) signals a somewhat more friendly and less formal attitude while maintaining politeness: * Vi ga niste videli. Source: Internet
Se meiden Herran Jesusen Christusen Pina, ylesnousemus ia tauiaisen Astumus, niste Neliest Euangelisterist coghottuon tells about Jesus Christ 's suffering. Source: Internet
NISTE is a federal entity but it is hardly federal in composition. Source: Internet