PredAdjNumAgr: Predicative adjectives show only number agreement.

(1) jux ūn.

the big

’The tree is big.’ (S. O.)

(2) jux-ǝt ūn-ǝt.

tree-pl big-pl

’The trees are big.’ (S. O.)

(3) jux-ǝt ūn-ǝt ū-s-ǝt.

tree-pl big-pl cop-pst-3pl

’The trees were big.’ (S. O.)

In Synja Khanty, the predicative adjective agrees in number with the subject (Onina 2009: 29).