mishkamu s/he finds something nimishken I find something

The stem of a TI verb like mishkamu is the part mishk- found before the endings -amu or -en.

This type of TI verb is formed by adding to the TI stem personal prefixes, if there are any, and the thematic suffixes (-e-, -am- or -a-), followed by the endings (person/tense/mood). For example:  tshitapatamu s/he looks at it, tshitshitapaten you look at it, tshitapatamupan s/he looked at it.

uapatamu s/he sees it nuapaten I see it
tutamu s/he does it tshituten you do it
puatamu s/he dreams of it puatamuat they dream of it
kushtamu s/he is afraid of it nikushtenan we are afraid of it
minuatamu s/he likes it minuatamupan s/he liked it
tshissenitamu s/he knows it tshitshisseniteti you knew it
shepitamu s/he opens it quickly shepita! open it quickly!
kunamu s/he knocks it over apu kunaman I didn’t knock it over
akunamu s/he photographs it akuna! photograph it!
atinamu s/he changes it nika atinen I will change it
naikamu s/he cleans it tshinaikenan we are cleaning it
mishkamu s/he finds it mishkamuat they find it
ushamu s/he boils it ushamupan s/he boiled it
pashamu s/he dries it pashetau! let’s dry it!
itishamu s/he cuts it in a certain way itishamińua s/he (obv) cuts it in a certain way