ABSTRACT
Spanish displays two ways of coordinating con-PPs: for argument con-PPs, prepositions must be repeated; for instrumental con-PPs, P-repetition is optional. To explain this fact, we first argue coordination operates on ⟨s, t⟩ constituents. Next, we argue instrumental con-PPs contain multiple functional projections, while argument con-PPs have only one. Coordination of the lower projection results in the P-less coordination, with coordination of the higher projection out because it is of the wrong type. Instead, coordination of vPs results in P-repetition: the second conjunct undergoes Gapping, the contrasted term moving from the ellipsis site. Since pied-piping is obligatory in Spanish, the P moves with the contrasted term, resulting in P-repetition. Only vP coordination is available for argument con-PPs, resulting in obligatory P-repetition.
