купланаш (-ем)
{verb II} [Generate paradigm] 1. {intransitive} to turn into a swamp, to become become boggy, to become swampy, to become marshy
♢ яра кийыше мланде куплана {sentence} the fallow land became swampy
~ ASPECTUAL CONVERB CONSTRUCTIONS ~
// купланен шинчаш (-ам) {verb I} {perfective} (see above)
♢ корем йымал купланен шинчын {sentence} the bottom of the ravine became swampy
--"PARENT"--> куп