As you see the whole german grammar revolves around these article Der Die & Das. When it comes to applying rules for all four cases (Nominative, Accusative, Dative & Genitive) used in German or...
Los pronombres (Pronouns) Los pronombres singulares (Singular pronouns) Yo (I) Tú (Informal You) ÉL/Ella/ Usted (He, She, Formal You) Los pronombres plurales (Plural Pronoun) Nosotros/Nosotras...