English Grammar: Focus on the Past

This book has one aim. That is, to help students understand the various "past tenses" used in English. If you are struggling to grasp those tenses then this book will come in useful. Many of my students have faced great difficulties in trying to distinguish the past progressive from the past perfect progressive. One way to remember which is which is, that when we use the past progressive, we refer to an action in progress at a specific time point in the past. With the past perfect progressi...