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Learn Spanish in Spain

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Common mistakes in Spanish

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Common mistakes in Spanish Words and Phrases

In all languages there are some words that lead to mistakes in writing or use due to their similarity in pronunciation. Since this problem also exists in Spanish, we have prepared a selection of 100 words that frequently present problems to help you improve your Spanish. Remember that you can also consult our data base of "Spanish Words" (word of the day) to expand your vocabulary.


EE.UU. is the correct form of the abbreviation for "Estados Unidos" de América in Spanish. The first letter of "Estados" is duplicated since it is plural, followed by the period of the abbreviation, and the "U" of "Unidos" is also duplicated, followed by the period of the abbreviation.

George Washington fue presidente de EE.UU.

Electo / elegido

Normally the irregular participle electo functions as an adjective and goes with a noun:
Zapatero es el presidente electo de España.
Elegido usually works as a verb.

España ha elegido un nuevo presidente.


The form of the second person singular (tu) of the indefinido (past tense) is sometimes confused with the second person plural (vosotros) form "elegisteis". We should remember that the correct form is elegiste.

¿Por qué elegiste el coche rojo y no el azul?

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