Nom : The primary role of the Nominative Case is to indicate that a word is the Subject of a sentence or clause.
       
     
 Voc : The role of the Vocative Case is to indicate that a word is being used to address something or someone. It is often proceeded by the interjection ‘o’.
       
     
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 Dat I : The Dative case can be used when we do something FOR someone or give, show or tell something TO someone or take something FROM someone.
       
     
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