As part of a general investigation of the under-documented Ebembe (bmb; Bantu, D54) tone system, we report on the progress made toward identifying the myriad factors influencing lexical and grammatical tone outputs in the Ebembe verb. In addition to general tone rules, these include subject marker allomorphy, the presence vs. absence of object markers, as well as the size and shape of the verb stem. The complexity of these types of systems has given rise to considerable micro-typological diversity. Our work contributes to the growing body of research in this area, adding much needed further description for Zone D languages.