Abstract
1. Introduction
2. Previous Arguments from Bošković
2.1 Asymmetry
2.2 No Structural Nominative Case
3. No TP Category in Korean
3.1 Extraction
3.2 Nominative Case Assignment
3.3 Optional Appearance of Tense and its Inseparability from Verb
3.4 Ha-verb Support: No Evidence for TP
4. Extension of the Generalization on DPs
4.1 Supporting Evidences
4.2 Some Puzzles
5. Conclusion
References