Exploration of ability, permission, possibility, necessity, and deductions (e.g., must have been The Passive:
Detailed focus on the present perfect vs. past simple, continuous forms, and future time. oxford practice grammar upper intermediate
For decades, this book has been a gold standard for self-study and classroom learning. This article provides a deep dive into why this particular grammar guide is indispensable, who it’s for, how to use it effectively, and how it compares to other resources. Exploration of ability