464 Notes these suffixes were not considered verbal deri- vationals by England. The suffix -paya- has been added to the 21 listed by England, who identified 10 verbal derivational suffixes as verbalizing noun roots only. The three additional verbalizers now identified are -su-, -ta-, and -kipa-. Verbal derivational suffixes that can verbalize certain noun stems as well as roots are -cha-, -t"api-, and -t'a-. -cha- also verbalizes noun themes ending in -fia. Scitation forms of verb roots and stems are not given with -na in Bertonio's grammars, but rather with 1>3 Simple tense. Verbs from Bertonio will here be cited by stem alone. 4 Tn this stem the three-vowel rule operates to cause the three-vowel stem uta.cha- to lose its final vowel before -kipa-. "The three-vowel rule operates on this and the next two examples built on ali.si-, a stem with -si- frozen to the root (see 6-2.19.1 and 6-2.21, below). Sagain, the three-vowel rule causes the final vowel of k'umara to drop before -tata-, as it also does in the case of aru.s.tata.fa. ’The /-xa-/ in this stem is believed to be an instance of the Class 2 completive suffix frozen to the root (see 6-2.25.2). 8 The present treatment of -si- differs from England's. 9some verbs with -si- take complements which must be marked with the noun suffix -mpi ~ -nti. (See my earlier treatment in Hardman et al. 1975:3.323).