本論文主要在探討日語「Nニ/トナル」句之非變化用法，在蘇(2001)的研究裡發現「Nニ/トナル」句除具有表變化的典型用法外，它並具有表非變化的多種非典型的用法。本論文針對「Nニ/トナル」和表非變化的被動及可能表達法之關連性，就句子結構及意義特徵加以剖析。另外針對雙重變表達句、形式動詞用法的ナル、及び「Nニ/トナル」形態的慣用句嘗試從認知語言學的觀點加以分析。

The purpose of this paper is to analyze the marginal uses of the “(noun)ni/to naru” expressions in Japan. In my analysis (2001), I have found that the “(noun)ni/to naru” expression has prototypical meaning of change-of-state, besides it has several kinds of non-prototypical meaning. The main discussion of this paper includes passive use and potential use, related to the change-of-state sentences either in construction or in meaning. In addition, the paper attempts to clarify the unique characteristics of double use of “change-of-state” expression and idioms which contain “(noun)ni/to naru” pattern from the viewpoints of cognitive semantics.