2009. Variation in linguistic sytems
2005. with Rena Torres Cacoullos. On the role of the (lexical) individual in grammatical variation: the future in Canadian English
2001. Using the past to explain the present: Tense and temporal reference in Early African American English
2000. with Darin Howe. Negating the Creole-Origins Hypothesis: Evidence from Early African American English
Grammatical Variation, Inherent Variability, and Coexistent Systems
Variation in existentials on Bequia (St Vincent and the Grenadines): Grammatical or lexical? (Co-author: M. Meyerhoff).