GrammaticaldescriptionsofEnglishwhichareaddressedtolearnersareoftenoversimplifiedandinaccurateThisistheinevitableresultoflackoftimeintheclassroomandlackofspaceincoursebooksandpracticebooksBadlyexpressedandinaccuraterules,inturn,becomeenshrinedingrammarbooksdirectedatteachersandstud