Aside. In principle, the spec-head configuration could also come into existence via external Merge. Here, we concentrate on Movement (internal Merge). Spec-head agreement Further motivation (Kayne 1989): In French/Italian, past-participle agreement with the object (with respect to gender and number) does not arise if the object remains in the position where it is merged (13-a)/(14-a). Only if the object moves (e.g., because it is a clitic) does past-participle agreement become possible (13-b)/(14-b).
Appears in 2 contracts
Sources: Vehicle Requirement on Merge, Vehicle Requirement on Merge