Hi A noun or pronoun has case if it changes according to the role it is playing in a sentence: - I hit Fred - Fred hit me The pronouns - I, me - refer to the same person (myself) but they do not appear the same in each sentence. In the first one, "I" is the subject of the verb; in the second "me" is the object In English this really only happens with pronouns. There are five personal pronoun pairs: I / me he / him she / her we / us they / them You use the first of the pair if you mean the subject of the verb; you use the second if you mean the direct object of the verb or the indirect object in a prepositional phrase - They meant nothing to her There is a little more to it than that, but that is the basic concept Dave
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