As in the case of the group of regular past participles, the group of irregular past participles also includes regular verbs, irregular verbs and stem changing verbs. This might sound very confusing. But the best way to learn Spanish past participles would be to learn by heart the list of irregular past participles and, then, proceed by elimination because what is not irregular, it has to be regular.Within the group of irregular past participles, there is a small group of verbs which end in -er and -ir and whose stem ends in a strong vowel (e, a, o). This small group forms its past participle in a regular way, except that the i of the ído ending carries the written accent.

Give the correct form of past participle for each of the following verbs. Start each entry with a small letter. Press Tab to check your answer. You might wish to use one of the three following on-line helpers to finish your ejercicio: conjugador, diccionario, acentos en español. ¡Suerte!