396 The tense is thus an excellent example of nonstop consonant instability in Aymara. 133 2>3 33 4+3 1>2 372 /-:/ (vowel length) everywhere; voiceless frica- tives<- in La Paz, Calacoa, Juli, Socca, Huancané; voiced nonstops elsewhere: velar nasal, Sitajara and Jopoqueri; palatal nasal, Salinas; palatal glide, La Paz, Socca, and Morocomarca. <*> /-:ta/ everywhere except Sitajara; preceded by voiceless fricative, Calacoa (also cited by Bertonio); preceded by velar nasal, Sitajara; preceded by alveolar nasal, Corque and Salinas. /-ni/ everywhere. /-tana/ and /-:tan/, Calacoa (*/-tana/ also cited by Bertonio); /-fiani/, /-tan/, and /-:tan/, Salinas; /-fiani/, /-tna/, and /-:tna/, Moroco- marca; /-nani/ elsewhere. Peruvian dialects, /-mama/ and variants; Bolivian dialects, /-:ma/. (Vitocota, near Ayata, pro- vince of Mufecas, in the department of La Paz, also has /-mama/.) The following also have /-:ma/: Juli, Socca, and Huancané. Sitajara has /-ma:/; La Paz has /-:man/ in addition to /-:ma/. /-:tam/, La Paz, Socca; /-:tam/ and /-(:)tma/, Juli; /-(:)tma;, Calacoa and Morocomarca. Forms