ABSTRACT
Here again we see that different criteria for the choice of an underlying form lead to the same conclusion: evidence from Initial Change and from vowel alternations under prefixation generally converges on an underlying representation from which all of the inflected forms of a verb may be derived. There are a few roots whose prefixed, unprefixed, and Changed forms require partially distinct underlying representations, but the vast majority are regular. Thus the schwas of the roots fpas-/ 'wear(?)' and /masahk-/ 'sorry,' which we set up in underlying representations on the strength of the fact that they occur in surface forms like h-pas-k8m-an 'he wears it' and mask-eyi-n 'he is sorry about it,' are confirmed by Changed forms like those in (16) in which e occurs in their place.
