The theoretical objective of this talk is to provide a deep account of the assignment of argument structure roles compatible with constructivist approaches such as Distributed Morphology (Halle & Marantz 1993; Marantz 1997; Embick 2010) and the exo-skeletal (XS)-Model proposed in Borer (2005a, b, 2013). Based on a recent hypothesis (Hu 2022), we argue that a limited set of functional heads are responsible for theta-role assignment, and that light verbs are exponents of the features on these functional heads - in a sense, these light verbs are true predicates of the clause. We take the famous V-de (得) construction in Mandarin (cf. Huang 1988; [...]