Theakston_etal_2005.pdf (Publisher version), 207KB
Theakston, A. L., Lieven, E. V., Pine, J. M., & Rowland, C. F. (2005). The acquisition of auxiliary syntax: BE and HAVE. Cognitive Linguistics, 16(1), 247-277. doi:10.1515/cogl.2005.16.1.247.