Uchumataqu has also borrowed grammatical and lexical morphemes from prolonged exposure to Aymara, with which it is not related, however. Unlike Aymara, Uru is not polysynthetic and has a phonemic five-vowel system /a e i o u/, while Aymara has a three-vowel system /a i u/. One contrast between Uru and the related Chipaya is that Uru does not identify gender morphologically as Chipaya does.
Uchumataqu has also adopted grammatical and lexical elements from prolonged contact with Aymara, despite not being related to it. Unlike Aymara, Uru is not polysynthetic and features a five-vowel phonology /a e i o u/, whereas Aymara possesses a three-vowel system /a i u/. One distinction between Uru and the related Chipaya lies in Uru's lack of morphological gender identification, unlike Chipaya.