I can categorize definite articles, indefinite articles, nouns and adjective into four categories.
Present Tense -ar Verbs Singular forms
Present Tense -ar ending verbs Llevar- to wear, to carry Usar- to use, to wear Comprar- to buy, to shop Pagar- to pay Buscar- to look for.
Present Tense - ar ending
Present Tense -ar Verbs
