I am a variationist sociolinguist. My main areas of expertise are language variation and change, corpus linguistics and models and methods for collecting and analysing linguistic data. I am particularly interested in dialectal morpho-syntactic and discourse phenomena. I have worked on a range of varieties of English, most notably on Hawaiian Creole, Tyneside English, Californian English and most recently on the variety of English spoken in the Marshall Islands. I am interested in global trends and contact-induced changes in the English language, which invariably brings up typological questions as regards the underlying causes of linguistic variability and change.