Michael Percillier’s research interests include language change, language contact, varieties of English, and corpus linguistics.
In his doctoral dissertation, he examined the structural similarities and differences of postcolonial varieties of English sharing a substrate language but not a colonial history.
During the first project of his postdoc phase (University of Strasbourg, 2013–2015), he analysed the use of non-standard language in literary texts. In his next project Borrowing of Argument Structure in Contact Situations (BASICS), during which he completed his cumulative habilitation thesis, he investigated grammatical change in the medieval contact situation between Middle English and Old French. In this context, he developed a method for lemmatising verbs in Middle English corpora, which is available from the BASICS Toolkit.
He is currently preparing a project investigating the diachronic development of Southeast Asian varieties of English using historical data.
He is co-editor of the journal Mannheim papers in multilingualism, acquisition and change (MAPMAC) and a reviewer for the journals World Englishes, English Today, Text & Talk, Journal of Data Mining and Digital Humanities, and Transactions on Asian and Low-Resource Language Information Processing.
Michael Percillier has been teaching at universities since 2010, primarily on the topics of World Englishes and diachronic linguistics. He has also held workshops on statistic analysis for linguists using R.
He completed the Baden-Württemberg Certificate for Teaching and Learning at University Level in 2021. In this context, he co-developed the instructional website on corpus linguistic methods Toolbox Anglistik IV.