koʃtərgem
{verb II} [Generate paradigm] 1. to roughen, to become coarse, to become weather-beaten
♢ t͡ɕurijem koʃtərgen {sentence} my face became weather-beaten
♢ kidem koʃtərga {sentence} my hands are getting rough
♢ lum koʃtərgen {sentence} the snow roughened
♦ mardeʒ dene koʃtərgem {verb II} to become rough in the wind
~ ASPECTUAL CONVERB CONSTRUCTIONS ~
// koʃtərgen pətem {verb II} {perfective} (see above)
♢ kidem koʃtərgen pəta {sentence} my hands are becoming completely rough
--"PARENT"--> koʃtəra