I'm finding it difficult to figure this out in sentences like the following:
a) I have a job to do.
b) I need you to go.
Surely, "have" and "need" assign theta-roles to "a job" and "you" respectively, but since an NP cannot receive multiple theta-roles, how do you explain the fact that both NP's are respectively interpreted as the object and subject of the infinival verbs in these sentences? The theoretical framework is minimalism. Let me know if this question is not clear enough.
Thank you in advance!