References
2014
Developments in the use of the English present perfect: 1750–present. Journal of English Linguistics 42: 1–23.Google Scholar
2013
 [with P. Collins]. Recent change in non-present perfect constructions in British and American English. Corpora 8(1): 115–135. DOI logoGoogle Scholar
2012
 [with P. Collins]. The present perfect in World Englishes. World Englishes 31(3): 386–403. DOI logoGoogle Scholar