This book brings together a series of contributions to the study of grammaticalization of tense, aspect, and modality from a functional perspective. All contributions share the aim to uncover the functional motivations behind the processes of grammaticalization under discussion, but they do so from different points of view.

The Grammar of the English Tense System forms the first volume of a four-volume set, The Grammar of the English Verb Phrase. The other volumes, to appear over the next few years, will deal with mood and modality, aspect and voice. The book aims to provide a grammar of tense which can be used both as an advanced reference grammar (for example by MA-level or postgraduate students of English or linguistics) and as a scientific study which can act as a basis for and stimulus to further research. It provides not only a wealth of data but also a unique framework for the study of the English tense system, which achieves great predictive and explanatory power on the basis of a limited number of relatively simple rules. The framework provided allows for an analysis of the semantics of individual tenses which reflects the role of tenses not only in locating situations in time relative to speech time but also in relating situations in time relative to one another to form temporally coherent discourse. Attention is paid to the relations between tenses. On the one hand, we can identify sets of tenses linked to particular temporal areas such as the past or the future. These sets of tenses provide for the expression of a system of temporal relations in a stretch of discourse in which all the situations are located within the same temporal area. On the other hand, there are many contexts in which speakers might in theory choose between two or more tenses to locate a situation (e.g., when we choose between the past tense and the present perfect to locate a situation before speech time), and the book examines the difference that a choice of one or the other tense may make within a discourse context. The book moves from a detailed exploration of the meaning and use of individual tenses to a thorough analysis of the way in which tenses can be seen to function together as sets, and finally to a detailed examination of tenses in, and tenses interacting with, temporal adverbials. Original data is used frequently throughout the book to illustrate the theory discussed.

Joan Bybee and her colleagues present a new theory of the evolution of grammar that links structure and meaning in a way that directly challenges most contemporary versions of generative grammar. This study focuses on the use and meaning of grammatical markers of tense, aspect, and modality and identifies a universal set of grammatical categories. The authors demonstrate that the semantic content of these categories evolves gradually and that this process of evolution is strikingly similar across unrelated languages. Through a survey of seventy-six languages in twenty-five different phyla, the authors show that the same paths of change occur universally and that movement along these paths is in one direction only. This analysis reveals that lexical substance evolves into grammatical substance through various mechanisms of change, such as metaphorical extension and the conventionalization of implicature. Grammaticization is always accompanied by an increase in frequency of the grammatical marker, providing clear evidence that language use is a major factor in the evolution of synchronic language states. The Evolution of Grammar has important implications for the development of language and for the study of cognitive processes in general.

This book presents the state of the art in research on grammaticalization, the process by which lexical items acquire grammatical function, grammatical items get additional functions, and grammars are created. Leading scholars from around the world introduce and discuss the core theoretical and methodological bases of grammaticalization, report on work in the field, and point to promising directions for new research. They represent every relevant theoretical perspective and approach. Research on grammaticalization and its role in linguistic change encompasses work on languages from every major linguistic family. Its results offer valuable insights for all theoretical frameworks, including generative, construction, and cognitive grammar, and relate to work in fields such as phonology, sociolinguistics, and language acquisition. The handbook is divided into five parts, of which the first two are devoted to theory and method, the third and fourth to work in linguistic domains, classes, and cateogories, and the fifth to case studies of grammaticalization in a range of languages. It will be an indispensable source of information and inspiration for all those who wish to know more about this fascinating and important field.

The volume contains a selection of papers originally presented at the symposium on “Areal patterns of grammaticalization and cross-linguistic variation in grammaticalization scenarios” held on 12-14 March 2015 at Johannes Gutenberg University of Mainz. The papers, written by leading scholars combining expertise in historical linguistics and grammaticalization research, study variation in grammaticalization scenarios in a variety of language families (Slavic, Indo-Aryan, Tibeto-Burman, Bantu, Mande, "Khoisan", Siouan, and Mayan). The volume stands out in the vast literature on grammaticalization by focusing on variation in grammaticalization scenarios and areal patterns in grammaticalization. Apart from documenting new grammaticalization paths, the volume makes a methodological contribution as it addresses an important question of how to reconcile universal outcomes of grammaticalization processes with the fact that the input to these processes is language-specific and construction-specific.

This Handbook is a comprehensive, authoritative, and accessible guide to the topics and theories that current form the front line of research into tense, aspect, and related areas.