The purpose of this study is to posit a principled explanation for the cross-linguistic puzzling phenomena of V-v-to-T and T-to-C movements found in English and French. For the explanation, Duality of interpretive properties and Phase Head are operated for the Agree valuation within the phase instead of the features of [Weak] and [Strong], admitting the next phase evaluation of look-ahead. For the further operations of verb (V)-movements, Chomsky's (2013, 2014) minimal search labeling algorithm (LA) interpreted in Interface and Matushansky’s (2006) DM are adopted and slightly modified. Namely, headhead shared features as the label and m-merger for morphological processes are used in narrow syntax and interpreted in Interface. And Present Form as in -s, Past Form as in -ed, Modal Form such as can or do, Perfect Form have-ed, Progressive Form be-ing, and Passive Form be-ed are suggested to be merged in the v like causative make on the ground of slightly fixed Bare Approach. As a result, the Head Movement Constraint (HMC), do-support and affix-lowering are addressed without violating Extension Condition (EC) and c-command.

1. Introduction
 2. Previous Accounts
  2.1. How Lexical Verbs Are Introduced to the V-Movements
   2.1.1. Chomsky’s (1993, 1995) Strong Lexicalist Approach
   2.1.2. Chomsky’s (1991, 1998, 1999, 2001) Bare Approach
  2.2. At What Level and How the V-Movements are Licensed
   2.2.1. Chomsky’s (1993, 1995) Syntactic Level
   2.2.2. Chomsky’s (1998, 1999, 2001) PF Level
   2.2.3. Matushansky’s (2006) DM Level
   2.2.4. Chomsky’s (2013, 2014) NS Level LA Interpreted in Interface
 3. Alternatives
 4. Conclusion
 References

• Huitae Kim(Keimyung University)