In this paper, we examine the evidence for the phase theory of movement (Chomsky 2000, 2001), in the context of Tagalog, arguing in particular that Tagalog has overt morphology that signals movement of arguments to check EPP on the head of the νP phase. We show that this morphology interacts with extraction in ways which Chomsky`s theory leads us to expect, and develop a theory of the Tagalog facts which also accounts for the effects of Huang`s (1982) CED.