-1INTRODUCTION Halfway through the twentieth century, linguistics underwent a major methodological shift, from distributional analysis of native-speaker speech (BloomÞeld, 1961), to the analysis of native-speaker intuitions about legal sentence types (Chomsky, 1957; for reviews, see Newmeyer, 1980; Sells, Shieber & Wasow, 1991). In most cases, the native speakers who furnish these intuitions ha...