The paper addresses the morphology and semantics of key aspectual-temporal forms in the Ashti dialect of Kubachi (Dargi group of Nakh-Daghestanian languages). The tense and aspect system of this dialect is typologically remarkable because of the large number and variety of verbal paradigm forms; for example, Ashti opposes morphologically three types of Habitual meanings. The paper also focuses on the interaction between the binary category of aspect expressed by verbal stems and the aspectual meanings of verbal inflectional suffixes. The description of the Ashti tense and aspect system is supplemented with its comparison with the systems of other Dargi languages and dialects.