This article discusses the form and functions of Slavic verbal aspect, which is a defining feature of Slavic languages. After a basic description including a treatment of the interaction between situation type and grammatical aspect, the article describes the morphology of Slavic verbal aspect, focusing on Russian. It discusses the roles of prefixation and suffixation in the creation of aspectually correlated verbs and argues for the idea of verbal networks/clusters as a more adequate alternati…