I am a Fellow and Tutor in French Linguistics at St Catherine’s College. Before returning to Oxford, where I was an undergraduate and graduate student, I held appointments at the Universities of Surrey, Bath, and Manchester. I have also held visiting appointments in Paris, Limoges, Berlin, Melbourne and Philadelphia.
I am Secretary of the International Society for Historical Linguistics, Deputy Director of the University of Oxford Research Centre for Romance Linguistics, and co-editor of the Cambridge History of the Romance Languages. In 2007 I was created Chevalier dans l’ordre des Palmes académiques by the French Government for services to the French language and French culture.
At St John's, I teach French Linguistics.
My main field of interest is historical morphosyntax, and I have published widely on agreement, refunctionalization, deixis, and the evolution of case and pronoun systems, with particular reference to Romance, although I have also worked on other language families, including Germanic and Austronesian.