University of Kentucky

Honorary Professor, Aston Institute of Forensic Linguistics

Alexander von Humboldt Professor - Heidelberg University

hoogleraar toegepaste taalkunde en variatielinhuïstiek

CLCG, University of Groningen

Assistant Professor in Applied Linguistics, Universitas Teknokrat Indonesia

Associate Professor of Linguistics, Brigham Young University

University of Bern

professor emeritus

Honorary Professor of Linguistics, University of York