Many English learners worry too much about verb tenses as they get confused which tense they should use while speaking or writing. If you stopped 100 native English speakers in the street and asked them about tense, 1 of them might give you an intelligent answer - if you were lucky. The other 99 would know little about terms like "past perfect" or "present continuous". But they can all speak fluent English and communicate effectively. Indeed, for ESL it helps to know about tenses.Lesson by lesson, this book will teach you how to form and use each of the 12 English tenses appropriately-...