The Syntax and Interpretation of Temporal Expressions in English

The only obligatory temporal expression in English is tense, yet Hans Reichenbach (1947) has argued convincingly that the simplest sentence is understood in terms of three temporal notions. Additional possibilities for a simple sentence are limited: English sentences have one time adverbial each. It is not immediately clear how to resolve these matters, that is, how (if at all) Reichenbach's account can be reconciled with the facts of English. This paper attempts to show that they can be reconciled, and presents an analysis of temporal specification that is based directly on Reichenbach's account. Part I is devoted to a study of the way the three times - speech time, reference time, event time - are realized and interpreted. The relevant syntactic structures and their interaction and interpretation are examined in detail. Part II discusses how a grammar should deal with time specification, and proposes a set of interpretive rules. The study offers an analysis of simple sentences, sentences with complements, and habitual sentences. It is shown that tense and adverbials function differently, depending on the structure in which they appear. The temporal system is relational: the orientation and values of temporal expressions are not fixed, but their relational values are consistent. This consistency allows the statement of principles of interpretation. An interesting result of the study is that the domain of temporal specification is shown to be larger than a sentence. Sentences that are independent syntactically may be dependent on other sentences for a complete temporal interpretation; complements may be dependent on sentences other than their matrix sentences. Time adverbials and tense may be shared, in the sense that a temporal expression in one sentence may contribute to the interpretation of another sentence. These facts have important consequences: only a grammar with surface structure interpretation rules can account for temporal specification in a unified manner, because more than one sentence may be involved. Context is thus shown to be crucial for the temporal interpretation of sentences.