Oh, Myung-Ki. 2000. A Pragmatic Analysis of Metalinguistic Negation Phenomena. Studies in Modern Grammar 19, 171-190. This paper is an attempt to show that metalinguistic negation connected with denying the appropriateness of a means of expression does not operate upon the semantic content of the sentence, but upon the manner in which the sentence is expressed. We will prove, through the examination of the well-known thirteen utterances, that this negation can indeed operate on any aspect of the utterances and on a conversational implicature as well. In order to understand the notion of metalinguistic negation, we`ll discuss the two distinctions that can be made regarding the use of negation, namely descriptive vs. metalinguistic negation and initiative vs. reactive negation, in the sense of Horn (1985, 1989) and Foolen (1991), respectively. On the basis of the two distinctions regarding the two uses of `not`, we will argue that the material falling within the scope of the metalinguistic negation is `mentioned` rather than `used`. And we`ll also argue that the metalinguistic negation under the relationship between the scalar operators such as `three`/`four` and `some`/`all` is acting on a conversational implicature associated with the pragmatic aspects.