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EnglishGrammarFOURTH EDITIONBetty S. AzarStacy A. HagenFUNDAMENTALS 1/3/11 8:00 AM Page iCONTENTSvContentsPreface to the Fourth Edition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xAcknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiiiChapter 1PRESENT TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1Simple present and present progressive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-2Forms of the simple present and the present progressive . . . . . . . . . . . . . . . . 41-3Frequency adverbs.

English Grammar FOURTH EDITION Betty S. Azar Stacy A. Hagen FUNDAMENTALS OF A01_FEG_SB_9326_FM.QXD 1/3/11 8:00 AM Page i

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