In syllables reduced through morphophonetic processes, terminal vowels (-a, -u:) of original bisyllables will often drop (except for -i, which tends to remain, leaving previous material unaffected), and resultant final stops will fricativize (r becomes sh). Aside from losing stress, any vowels preceding these shifted consonants will often shift from tense to lax. Ex. -a:gu: 'for self, with one's own' > -ax-. ata 'to take, convey' > vhr-, and so on. Present tense usually results in the dropping of the final vowel of the infinitival form of the verb and associated changes as above, as does affixation by many, but not all, further derivational and inflectional suffixes beginning with stops, affricates, and other consonants. Ex. aiamaka 'to fight' aiamux-tvlli 'to fight confusedly'.