doi:10.1017/S002222671800052X, published online by Cambridge University Press, 3 January 2019.

In the Journal of Linguistics article ‘Lessons from the English auxiliary system’, by Ivan A. Sag, Rui P. Chaves, Anne Abeillé, Bruno Estigarribia, Dan Flickinger, Paul Kay, Laura A. Michaelis, Stefan Müller, Geoffrey K. Pullum, Frank Van Eynde & Thomas Wasow, the first sentences immediately following example (1) should read as follows:

There are of course many other distinctive properties of the English auxiliary system (EAS). One that to our knowledge has remained unaccounted for in analyses of the EAS – including Hudson (1976a), Gazdar et al. (1982), Starosta (1985), Lasnik (1995), Lasnik et al. (2000), Kim & Sag (2002), and Freidin (2004) – is that auxiliary do is ‘necessary whenever it is possible’ (Grimshaw 1997).