Barron's English Verbs Author:Vincent Hopper, Benjamin W. Griffith Irregular verbs are often difficult to master, precisely because their formations do not follow standard rules. Here are more than 120 irregular verbs conjugated in all tenses, followed by a brief review of standard English usage. This small-format book makes a handy classroom supplement, and also serves as a valuable handbook in ESL courses.Thi... more »s new edition has an expanded section on spelling, a list of common abbreviations, and tips on avoiding use of double negatives.« less