Grammar & Style Links Refdesk.com's Grammar, Usage and StyleElements of Style, by William Strunk, Jr., and E.B. White Grammar & Mechanics Handouts Active vs. Passive Voice Article Usage Colons and Semicolons Commas Commonly Confused Words Prepositions and Prepositional Phrases Quotations Run-on Sentences and Sentence Fragments Transitional Expressions Verb Tenses