::I'm deleting the note at the top of the article that says "This article is missing information about principal parts of Spanish verbs" etc. "Principle parts" are not part of the Spanish grammatical tradition. See the article "Principal parts", where it says "In Spanish, verbs are traditionally held to have only one principal part, the infinitive, by which one can classify the verb into one of three conjugation paradigms (according to the ending of the infinitive, which may be -ar, -er or -ir)."