This document analyzes tense, aspect, and negation in the Mọ̀bà dialect of the Yorùbá language. It finds that Mọ̀bà has one future tense marker, éè, similar to Standard Yorùbá, but with some phonological variations. Mọ̀bà also uses a high tone syllable, é, to mark both present and past tense, and has the same progressive, habitual, and perfective aspect markers as Standard Yorùbá. Finally, the study identifies four negation markers in Mọ̀bà and suggests one of these markers, ọ̀kọ́, may be the