the notion of level of grammaticalness a case of semigrammaticalness of a different sort most of the methodological work in modern linguistics a subset of English sentences interesting on quite independent grounds the natural general principle that will subsume this case an important property of these three types of EC any associated supporting element the appearance of parasitic gaps in domains relatively inaccessible to ordinary extraction the speaker-hearer's linguistic intuition the descriptive power of the base component the earlier discussion of deviance this analysis of a formative as a pair of sets of features this selectionally introduced contextual feature a descriptively adequate grammar the fundamental error of regarding functional notions as categorial relational information the systematic use of complex symbols the theory of syntactic features developed earlier