请帮我检索主题包括情态和时间概念的相关研究，谢谢

好的，以下是关于情态和时间概念的相关研究： 1. "The expression of modality and time in English" by Michael Halliday (1970) 2. "Modality and the English Modals" by Frank Palmer (2001) 3. "The Semantics of Modal Auxiliaries" by Angelika Kratzer (1981) 4. "Tense, Aspect, and Modality in English" by Renaat Declerck (1991) 5. "Modal Verbs and Their Functions in Discourse" by Ilse Depraetere (1995) 6. "The Interaction of Tense and Modality: A Case Study in the Syntax-Semantics Interface" by Paul Portner (2009) 7. "The Expression of Time and Modality in Natural Language" edited by Kasia M. Jaszczolt and Louis de Saussure (2015) 希望这些研究能对您有所帮助。