Evidence from usage-based studies of second language (L2) acquisition reveals that a main source of L2 learners' developing grammars is the L2 input to which learners are regularly exposed. What learners develop from their extended engagement in the sequences of actions comprising the input is not an acontextual system of grammatical units but…

A great deal of research on second language (L2) input has provided useful linguistic evidence for the development of generalizations about and hypotheses on the usage-based nature of L2 knowledge. However, despite the fact that classrooms are one of the most ubiquitous sites of L2 learning, we still know very little about the linguistic quality…

A key insight of a transdisciplinary perspective on second language acquisition (SLA) as articulated by the Douglas Fir Group (2016) is its usage-based understanding of language. Evidence on the fundamental role that usage plays in shaping individual language knowledge is no doubt compelling. However, while the force of social interaction in…