This thesis examines the extent to which research into formulaicity can usefully inform language pedagogy. Aspects of formulaicity are outlined to demonstrate the importance of this area of study to our understanding of language production and use. The relationship between research into formulaicity and wider linguistic research, and between this and language pedagogy, is then examined, and the theoretical and ideological influences on language research and how this may impact on the practice of language teaching discussed. Claims regarding the potential for formulaicity-based pedagogy to aid the acquisition of grammatical competence in an L2 are critically examined, as are notions of what it means to be proficient in a language. The ...