| A | B |
|---|
| cerrar | E to IE cierro to close |
| defender | E to IE defiendo to defend |
| sentir | E to IE siento to feel |
| querer | E to IE quiero to want |
| empezar | E to IE empiezo to begin |
| preferir | E to IE prefiero to prefer |
| pensar | E to IE pienso to think |
| contar | O to UE cuento to count |
| volver | O to UE vuelvo to return |
| dormir | O to UE duermo to sleep |
| recordar | O to UE recuerdo to remember |
| morir | O to UE muero to die |
| pedir | E to I pido to ask for |
| impedir | E to I impido to prevent/prohibit |
| repetir | E to I repito to repeat |
| enviar | IAR(add accent) envío to send |
| variar | IAR(add accent) varío to vary/change |
| continuar | UAR(add accent) continúo to continue |
| actuar | UAR(add accent) actúo to act |
| huir | UIR(add y) huyo to flee |
| construir | UIR(add y) construyo to build/construct |
| dirigir | GIR (YO form only) dirijo to direct |
| elegir | GIR(YO form only) elijo to elect |
| ofrecer | CER(ZC) (YO form only) ofrezco to offer |
| conocer | CER(ZC) (YO form only) conozco to know |
| vencer | CER(ZC) (YO form only) venzo to win/to conquer |
| producir | CIR(ZC) (YO form only) produzco to produce |
| conducir | CIR(ZC) (YO form only) conduzco to drive |
| reducir | CIR(ZC) (YO form only) reduzco to reduce |
| proteger | GER(change G to J) (YO form only) |
| escoger | GER(change G to J) (YO form only) |
| distinguir | GUIR(drop the U) (YO form only) distingo to distinguish |
| seguir | GUIR(drop the U) (YO form only) sigo to follow |
| conseguir | GUIR(drop the U) (YO form only) consigo to accomplish |
| caber | (YO form only) quepo |
| hacer | (YO form only) hago |
| poner | (YO form only) pongo |
| saber | (YO form only) sé |
| salir | (YO form only) salgo |
| valer | (YO form only) valgo |
| decir | (very irregular, study all conjugations) to say/to tell |
| estar | (very irregular, study all conjugations) to be |
| ir | (very irregular, study all conjugations) to go |
| oír | (very irregular, study all conjugations) to hear |
| ser | (very irregular, study all conjugations) to be |
| tener | (very irregular, study all conjugations) to have |
| venir | (very irregular, study all conjugations) to come |
| haber | (very irregular, study all conjugations) to have/to be |
| dar | (very irregular, study all conjugations) to give |
| ver | (very irregular, study all conjugations) to see |
