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At the heart of every sentence in English is a verb, for it provides action or expresses a state of being. The English language is the most complicated and sophisticated in the world in large part due to its large number of verbs and verb tenses. All the types of verbs, their tenses, voice, and mood are clearly explained by two leading experts in this booklet. There are also many self-learning exercises, along with the answers, to help the reader.
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