I am a Professor of Linguistics in the Department of Linguistics at the University of Colorado Boulder and a Faculty Fellow in the Institute of Cognitive Science. In addition, I was a founding editor of the Cambridge University Press journal Language and Cognition: An Interdisciplinary Journal of Language and Cognitive Science. I am the author, with Jong Bok Kim, of a Construction-Grammar-based syntax textbook Syntactic Constructions in English (2020; Cambridge).
My research specializations include the tense-aspect interface, corpus syntax, syntactic innovation, aspectual meaning in typological perspective, the discourse-syntax interface, etymology and Latin syntax and semantics. I am a proponent and developer of Construction Grammar, a syntactic theory that represents the grammar of a language as a structured inventory of patterns ranging from the highly schematic to the very specific.