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.
This new edition has an expanded section on spelling, a list of common abbreviations, and tips on avoiding use of double negatives.