This report describes inflectional verb morphology in Nomatsigenga, an Arawak language spoken in Peru. I first describe Nomatsigenga's systems of person, number, directionals, aspect, and reality status marking, cognates of which are also found in other Kampan languages. I also describe aspect markers, which seem to be a Nomatsigenga innovation among the Kampan languages. I will describe the structure of these markers, which show an interesting pattern of agreement with the absolutive argument. I further discuss the historical development of these markers, which have their source in the reanalysis of a set of noun class markers that also served as adjectivizers. I also discuss points relating to verb syntax, major word classes, and (morpho)phonology necessary in order to present a coherent description of verb morphology. / text