Abstract
Alternation of verb forms, a well-known phenomenon in Indian Ocean Creoles, represents an emerging morphological innovation in the transition of French popular languages (Chaudenson 2003, Henri 2021). In fact, this alternation occurs in all these Creoles to varying degrees (Henri et al., 2020). Resulting from the organization of the French paradigm structure, this inherited contrast, but morphologized in the context of creolization, will take on new functions depending on the linguistic ecology in which each creole evolves. In Indian Ocean Creole, the Bantu influence is obvious : verbal alternation marks the object. Louisiana Creole, on the other hand, retains certain French functions, while Caribbean Creole features a complex system at the verbal level, where the lexical aspect (as well as TAM markers) plays a part in the interpretation of predicates.