Quick Find Road Map If you sometimes feel a bit unsure as you write, try using the QUICK FIND ROADMAP to get you back on track to effective writing. The roadmap reflects some of the most common writing errors that frustrate writers. To find the information you need, choose the item that best describes the issue you are facing and then turn to the pages referenced. WORDS AND SENTENCES Write complete sentences instead of fragments. Join independent clauses correctly by avoiding comma splices and run-ons. Match grammatical forms within sentences to avoid shifts and keep sentences clear. Make sentences with introductory phrases and with modifiers clear. Know when to use its or it's. GRAMMAR Match subjects and verbs in number and person. Match pronouns to the word or words they refer to. Use correct verb endings. Choose verbs that correctly express time in tense and form. Describe relationships with the correct prepositions for time and place. PUNCTUATION Use commas after introductory elements. Use commas in compound sentences. Use commas to set off nonrestrictive elements. Do not use commas to set off restrictive elements. Use commas with a series of three or more elements that share the same grammatical form. Use apostrophes correctly. STYLE AND WORD CHOICE Choose the best words for your meaning. Make your writing to the point and concise.Lynn Q. Troyka is the author of 'Simon & Schuster Handbook for Writers (8th Edition) (MyCompLab Series)', published 2006 under ISBN 9780131993846 and ISBN 0131993844.