眞僞判斷의 모달리티에 관한 考察 : 推量表現「だろう」「ようだ」「らしい」을 中心으로

Abstract

To make a sentence as the language, It's natural that people whose native language is japanese don't make the mistake by using japanese. If they make the mistake, it will be rare. But, If the those who study japanese by nonnative language don't know the appropriate rules of composition, It can be cause of the deficiency of the correctness, misinterpretation on the communication On the study of the 「darou」「rasii」「youda」 as an expressions of supposition, It's estimated that the auxiliary verb 「rasii」 is similar to 「youda」. When there is an objective fact, auxiliary verb 「rasii」 is used. When it comes to the difference between 「darou」 and 「rasii」, 「youda」 is used, when it's up to their own estimation. On the other hand, 「rasii」 depends on the information earned. Among the simplified expression, 「darou」is used, when we think we are sure. But It's not used, when we speak to other people. That's why 「darou」is very subjective expression of supposition depending on speaker's expectation. So it's used, when speaker emphasize the their opinion on the speech. This paper investigates how the expressions of supposition 「darou」「rasii」「youda」are used as a subordinate concept of the modality and indicates the difference and a distinguishing characteristic. So we can provide the adequate way to study japanese.