1. The semantic path from modality to aspect
2. Arregui Ana.2005. “On the Accessibility of Possible Worlds: The Role of Tense and Aspect.” PhD diss. University of Massachusetts Amherst.
3. Bary Corien.2009. “Aspect in Ancient Greek: A Semantic Analysis of the Aorist and Imperfective.” PhD diss. Radboud University.
4. Bhatt Rajesh.1999. “Covert Modality in Non‐Finite Contexts.” PhD diss University of Pennsylvania.
5. Tensed modals