의문사 'why'의 병합위치와 이동분석

The purpose of this paper is to find out the syntactic structure where some syntactic peculiarities of interrogative why can be uniformly accounted for. Within the left periphery merge theory that why is base-generated in the left periphery of a clause, there are two options. One is the non-movement analysis that why never moves in the complementizer layer. The other is the movement analysis that why moves within the complementizer layer(i.e., from RP-Spec to IntP-Spec). On the basis of some pieces of empirical evidence, I have tried to illustrate that the movement analysis is more adequate than the non-movement analysis. I have shown that we cannot but adopt the movement analysis to uniformly account for the interaction of why with a quantifier or a focus operator, and some peculiar characteristics of why in multiple wh-questions.