Acceso usuarios
Alex Housen 
Studies on the L2-acquisition of Tense-Aspect (TA) have argued that the emergence and development of verb morphology is constrained by semantic-conceptual prototypes in a way that coincides with the claims of the Aspect Hypothesis (AH) (Andersen & Shirai 1996). This paper presents results from a longitudinal study of the development of TA in L2 English which suggests that the influence of such prototypes is itself constrained by other factors, notably L1-induced predispositions to mark specific temporal categories, the morphophonemic nature of different grammatical categories, and the nature of the processing mechanisms that operate in the learning of grammatical morphology.
