HowtolearncaseCaseCaseisthegrammaticalfunctionofanounorpronoun.ThethreecasesinmodernEnglisharesubjective(he),objective(him)andpossessive(his).TheymayseemmorefamiliarintheiroldEnglishform-nominative,accusativeandgenitive.ThereisnodativecaseinmodernEnglish.Firstthoughthegoodnews.Youcannotreallygowronghere,wehaveshedmostofourcasesandasaresultEnglishiseasierthanmanyotherlanguagesbecausenounsandsomeindefinitepronouns(anyone,someone,everyone,andsoon)onlyhaveadistinctivecaseformforthepossessive.However,aremnantofoldEnglishisthatpronounshavedistinctiveformsinallthreecasesandmustbeusedwithcare.Thepronouncasesaresimple.Therearejustthree:-1.Subjectivecase:pronounsusedassubject.2.Objectivecase:pronounsusedasobjectsofverbsorprepositions.3.Possessivecase:pronounswhichexpressownership.PersonalPronounSubjective/NominativeObjective/AccusativePossessive/GenitiveIMeMineYouYouYoursHeHimHisSheHerHersItItItsWeUsOursTheyThenTheirsWhowhomWhoseThesepronouns,andwhoanditscompounds,aretheonlywordsthatareinflectedinallthreecases(subjective,objective,possessive).Innounsthefirsttwocases(subjective用心爱心专心andobjective)areindistinguishable,andarecalledthecommoncase.Oneresultofthissimplicityisthat,thesenseofcasebeingalmostlost,thefewmistakesthatcanbemadearemadeoften,evenbynativespeakers,someofthemsooftenthattheyarenowalmostrightbyprescription.用心爱心专心
