过时的正字形变化动词

 The following changes occur in the yo form only:

Verbs that end in -gar change g to gu

Verbs that end in -car change c to qu

Verbs that end in -zar change z to c

Examples:

jugué (jugar)

busqué (buscar)

almorcé (almorzar)

Here are some examples of common verbs in this category:

jugar

llegar

pagar

rogar

aparcar

buscar

clasificar

tocar

almorzar

comenzar

empezar

organizar

For verbs that end in -aer, -eer, -oír, and -oer, the él,/ella/usted form uses the ending yó (rather than ió) and the third person plural uses the ending yeron (rather than ieron). The remaining forms gain a written accent over the letter i.

Example: creer

creí

creíste

creyó

creímos

creísteis

creyeron

Other verbs like creer include:

caer

leer

oír

poseer

proveer

roer

Exceptions to this rule include:

traer

atraer

distraer

Verbs that end in -uir change in the same way, but the written accent over the letter i only occurs in the yo form.

Example: huir

huí

huiste

huyó

huimos

huisteis

huyeron

Other verbs like huir include:

construir

contribuir

destruir

fluir

incluir

influir