My research is focused on syntax and the interface between syntax and semantics. I am also interested in computational and mathematical linguistics, in particular in the creation of linguistic resources for computational linguistics such as treebanks. I am an expert on the analysis of the languages of South Asia. I have worked extensively on Hindi-Urdu, Kashmiri, and Kutchi and am interested in the various phenomena that characterize the linguistic situation of the Indian subcontinent. Within syntax and the syntax-semantics interface, I have been interested in relativization, comparatives, modality, and case and agreement. A major long term goal of my research is to harness the linguistic richness of the Indian subcontinent towards a deeper picture of crosslinguistic variation, bringing data from underdocumented and understudied South Asian languages to bear upon our understanding of the human language faculty.