The author takes her reader on an amazing variationist journey around the globe, revealing chapter after chapter the commonalities and differences in the patterns of use of the English present perfect and, finally, developing a comprehensive perspective allowing for robust generalisations across numerous data sets.
Moreover, empirical data serves as a baseline for taking a stand on a number of currently debated issues in variationist sociolinguistics, research on second language acquisition as well as research on linguistic complexity. Thus operating on the interface of various linguistic paradigms, the book addresses a vast audience including students of linguistics and researchers with various fields of specialization.