SitDeonV: Situational necessity is expressed through the use of verb constructions.
(1) jēt-na pelaki wera-ja jol-n ūl-ti mɔ̄s-l.
evening-loc around Vera-lat home-loc be-inf have_to-prs.3sg
‘Around the evening time, Vera has to be at home.’ (F. L.)
(2) jēt-na pelaki wera jol-n ūl-ti wēr-ǝl ū-l.
evening-loc around Vera home-loc be-prs.ptc thing-3sg be-prs-3sg
‘In the evening, Vera has to be at home.’ (S. O.)
In Synja Khanty, situational necessity is expressed by the mɔ̄s ‘must/have to’ auxiliary (1) or by the expression meaning ‘somebody has things to do’ (2) (S. O., F. L.). The topic requires further research.