West Highlands Bantu is a group of closely related languages from the Great Lakes region of Eastern Africa including Kirundi and Kinyarwanda. The in-depth study of this grammatical phenomenon involves building a new Kinyarwanda corpus and collecting new fieldwork data in four poorly known languages from Tanzania. At the University of Burundi in Bujumbura, Arnaud will be supervised by Prof. Ferdinand Mberamihigo, who obtained himself in 2014 a joint PhD degree at Ghent University (UGent) and Brussels University (ULB) and is a BantUGent associate