About this document
Present Perfect Grammar Comparison by Gregory Morales is a document available to read on EtoBox.
The document summarizes the similarities and differences between the present perfect simple and present perfect progressive tenses. Some key similarities are that both tenses are used to talk about unfinished actions that started in the past and continue into the present. The main difference is that the present perfect simple uses "have/has" as an auxiliary verb while the present perfect progressive uses "have/has been". The perfect progressive also emphasizes the duration of an action more than the simple.
- Author
- Gregory Morales
- Language
- EN