The Naked Verb: The Meaning Of The English Verb Tenses by David Maule
This text gets away from the grammar of lists and exceptions and leads the learner to an understanding of the central meaning of each verb tense. It is designed on a self-access basis with tasks which involve the individual user in decision-making and encourage awareness of the living language. The features include colour diagrams, showing the relationship between the various tenses, a view of the past tense which considers reality as well as time, authentic citations taken from contemporary films, books and TV, and a theoretical approach which emphasizes silmilarities rather than differences.