Language acquisition is a human endeavor par excellence. As children, all human beings learn to understand and speak at least one language: their mother tongue. It is a process that seems to take place without any obvious effort. Second language learning, particularly among adults, causes more difficulty. The purpose of this series is to compile a collection of high-quality monographs on language acquisition. The series serves the needs of everyone who wants to know more about the problem of language acquisition in general and/or about language acquisition in specific contexts.

This book deals with the development of modality from a crosslinguistic perspective and is closely related to two earlier volumes on the development of verb and nominal inflection in first language acquisition (SOLA 21 and 30) both methodologically and theoretically. Each of the fourteen contributions studies the early development of the form and function of expressions of deontic and dynamic agent-oriented modality or epistemic and evidential propositional modality in one of fourteen languages belonging to different morphological types and language families (seven Indo-European and seven...