Departmental Bulletin Paper 日本語の五段活用動詞と一般活用動詞の過去形の生産
Production of past-tense forms for consonant-stem and vowel-stem verbs in Japanese

塗, 楽  ,  中野, 陽子

36pp.209 - 225 , 2016 , 九州大学大学院人文科学研究院言語学研究室
Although previous studies have argued that two different systems—the rule-based system and the associative system—are involved in producing past-tense forms of various languages, it has not yet been clear whether the two systems are applicable to the production of past-tense forms for Japanese consonant-stem and vowel-stem verbs. A past-tense form production task revealed that past-tense forms for novel verbs patterned with those for real consonant-stem verbs, regardless of whether the novel verbs were similar to the existing vowel-stem verbs or to the consonant-verbs. The result indicated that the past-tense formation rule for consonant-stem verbs was generalized as a default and applied to novel verbs. The results of the task also indicated the frequency effect on the past-tense form production of II consonant-stem verbs and vowel-stem verbs. Although the two verbs belong to different verb groups, their dictionary forms share the same endings–iru (/iɽɯ/) or –eru (/eɽɯ/). The results indicated that the past-tense forms of the CC, CI and IC consonant-stem verbs are produced through the rule-based system, and those of the II verbs and vowel-stem verbs are produced through the associative system.

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