This book is a collection of articles dealing with theoretical issues in the study of tense, mood and aspect, as well as with specific semantic and syntactic problems raised by linguistic expressions dedicated to these domains across a variety of languages. Through these papers, strong variations are explored, but also crosslinguistic convergences are investigated. Numerous phenomena so far often left aside in linguistics are described and enlightened by different scientific standpoints, which they serve to illustrate. The languages investigated in this volume include Germanic languages (Dutch, English, German), Romance (French, Catalan, Italian), Slavic (Serbo-Croatian, Czech, Russian), Greek, and non-indoeuropean languages such as Thai, Digo and Kikuyu. Related topics such as grammaticalization, presuppositions, questions in dialogue, illocutionary acts and acquisition are incidentally called upon in order to shed light from the outside onto tense, mood (and modality) and aspect. This volume is of great interest for all scholars engaged in contemporary research on the linguistic expression of tense, mood and aspect. The papers gathered in this volume are a tight selection of the ones that were presented at the 6th Chronos colloquium.