The role of structural case in syntax is arguably one of the most controversial topics in syntactic theory with important implications for semantic theory. This book focuses on some of the most puzzling case marking patterns in the Slavic languages and ties these patterns to different types of aspectual phenomena, showing that there is after all a pattern in the seeming chaos of case in the Slavic languages. Kylie Richardson addresses links between the case marking on objects and the event structure of a verb phrase in Belarusian, Russian, Ukrainian, Czech, Slovak, Polish, and Bosnian/Croatian