Professor Hendrick (Department of Linguistics) specializes in syntactic theory and the way that syntax coordinates with semantics on the one hand and morphology on the other. Currently he is working on classes of predicates and their relations to events. Syntactic reflexes of the semantic distinction between categorical and thetic judgments are part of this project, as is the syntactic domain of existential closure. This work stems from his fieldwork on Polynesian and Celtic languages. It relates as well to some psycholinguistic experimentation designed to distinguish properties of derivations from properties of representations.