Klaas Bentein was born in Waregem, Belgium. He received a master’s degree in Classics from Ghent University in 2007, and a doctoral degree in Linguistics from the same university in 2012. Afterwards, he worked as a research fellow at the universities of Michigan (BAEF, 2013 – 2014) and Ghent (FWO, 2014 – 2017). He is currently BOF-ZAP Research Professor at Ghent University. His main research interests include Ancient Greek linguistics, language contact, historical socio-linguistics, and papyrology. He has been awarded a Starting Grant (EVWRIT, 2018 – 2023) by the European Research Council to perform a comprehensive ‘socio-semiotic’ analysis of communicative variation in documentary texts, bringing together dimensions such as language, linguistic choice, handwriting, writing material, document format, etc. He has published over forty articles in books and peer-reviewed journals. He is the author of Verbal Periphrasis in Ancient Greek: Have- and Be- Constructions (OUP, 2016), and the editor of Variation and Change in Ancient Greek Tense, Aspect and Modality (Brill 2017) and Varieties of Post-classical and Byzantine Greek (De Gruyter, forthcoming).