English Grammar for Spanish Speakers: the 4 Basic Verb Tenses

This is a book for Spanish-speakers studying English Grammar. Every line of text is translated underneath into Spanish for immediate translation. It covers 4 basic verb tenses (simple present, present continuous, past, and future). It covers how to create affirmative statements, negative statements, yes/no and information questions and answers. It covers the difference between the verb "to be" and all other verbs when creating negatives, questions, and short answers using auxiliaries (do, don't, does, doesn't, did, didn't) in the simple present tense and past tense. There is an answer key in the back of the book as well as an extensive verb list with all verb forms (base, simple present, present participle, simple past, and past participle).