Past Affix’ Selection of Verbal Stems

We will observe which stem allomorph the affixes, the so-called ‘nonpast’ affix, the past affix, the imperative affix, the negative affix and the voice affix-like verbs, select between the longer and the shorter in JapaneseYanagawa dialect on the assumption that verbal lexemes may be associated with more than one stem. Observing the phenomenon more closely, we found that the verbal stem forms entertain default implicative relations in the stem dependency hierarchy. We will propose i) an implemented analysis of the past affix and ii) an implementation of the allomorph selections by the ‘nonpast’ affix in Koga and Ono, 2010 as two examples.