1 TENSE AND TIME 1 by Steven T. Kuhn and Paul Portner I. Introduction 1 II. Early work 1. Jespersen 2 2. Reichenbach 9 3. Montague 13 III. Contemporary views A. Types for tense 18 B. Quantification and determinacy 4. Quantification 20 5. Determinacy 22 C. Major contemporary frameworks 25 D. The compositional semantics of individual tenses and aspects 6. Tense 30 7. Aspect 39 8. Tense in intensional contexts 53 9. Tense and discourse 59 IV. Tense Logics for natural language A. Motivations 63 B. Interval based logics 67 C. Now, then, and keeping track of time 73 D. Galton’s logic of events and aspects 87 Notes References I. INTRODUCTION The semantics of tense has received a great deal of attention in the contemporary linguistics, philosophy, and logic literatures. This is probably due partly to a renewed appreciation for the fact that issues involving tense touch on certain issues of philosophical importance (viz., determinism, causality, and the nature of events, of time and of change). It may also be due