In this paper, we present the annotation scheme used in the SenSem corpora (SSC), for Spanish and Catalan, to codify information regarding aspectuality, modality, polarity and factuality. As regards aspectuality, the most relevant contribution is the codi"cation of information about dynamicity, telicity and iterativity. Regarding factuality, we present a more "ne-grained annotation of uncertainty as applied to the identi"cation of impossible events, completely uncertain events and neutral uncertain events. Although information about factuality in Spanish has been provided elsewhere, the Catalan SSC is the only corpus to do so for Catalan.