Exclamatory phrases, which express what a or how, begin with qué, cuánto, and cómo. Qué can be followed by a noun or an adjective. Sometimes tan or más are also used with the adjective to emphasize a defect or a quality. ¡Qué mujer! What a woman! ¡Qué familia tan unida! What a united family!
Cuánto expresses quantity, and agrees in gender and number with the adjective that follows. It can also be followed by a verb, in which case there is no agreement. Furthermore, lo que can replace cuánto when a verb follows. ¡Cuánta comida! How much food! / There’s a lot of food! ¡Cuánto comes! How you eat! / You eat a lot!
Cómo expresses the manner in which something is done. It can only be followed by a verb. ¡Cómo baila! How he dances! / He dances well!
Word Document at: 087 Spanish Exclamations