The American Heritage Book of English Usage - Verbs
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||Nov 02, 2008|
||Advanced, Elementary, Beginner
This is a one-page explanation of verbs taken from The American Heritage Book of English Usage. From the text:
Verbs are words that express an action or a state of being. All English verbs that are not auxiliary verbs have four principal parts: a base form (the infinitive without "to"), a present participle, a past tense, and a past participle.