時間節の「トコロデ」とこの形式における「デ」の格助詞性

Abstract

In this paper, I analyzed the temporal tokorode and features of case particle de in usages of tokorode which connect with -ta form of verb. Generally, two usages of tokorode are analyzed into conjunctive particle in precedent researches. However, temporal tokorode has the features of case constituent grammatically. There is a temporal tokorode in verbal phrase of sentence structure, but concessive tokorode is out of verbal phrase. Moreover, temporal tokorode is not connected with modal expressions of a sentence. In contrast, concessive tokorode is usually connected with modality in sentence. In this point, temporal tokorode is the case constituent, and it is likely that de in this usage is case particle. There is enough evidence to show that (tokoro)de has features of case particle. Particularly, (tokoro)de seems to be a case particle in grammatical test of additional modification clause and connecting with toritate particle. In conclusion, it seems reasonable to conclude that the classification of the usages in tokorode is affected by the features of case particle in (tokoro)de. From now on, this discussion will be expected in analysis of semantical variation in tokoro clauses.