Enclisis at the syntax-PF interface

This paper discusses the proclisis-enclisis alternation of object clitics in finiteness sensitive and Tobler-Mussafia languages. I argue that proclisis/enclisis can be derived via the interaction of syntactic and PF operations, at least in a number of environments, although purely syntactic or PF derivations are also possible but rare. I present an outline of how certain proclitic and enclitic structures are derived, using a grammatical model in which syntax feeds PF, and I try to show how much of the alternation is syntactic and how much is PF. The implications for head movement are also discussed.