1. Preterite Review Sheet
Regular Preterite
Irregular Stem Preterite
-AR
-ER/IR
Irregular Preterite
SER / IR
HACER
LEER / CREER
VER
DAR
Oír
*In Ellos form, drop the ”I” in “ieron”
IR STEM CHANGE VERBS
Spell changing Verbs
Only in Yo form of AR
CAR- to QU
GAR- GU
ZAR- C
Stem Change Preterite
Rule #1: Only IR verbs stem change in the preterite
Rule #2: Only stem change in the EL / ELLOS form of the verb
***I changes to Y in an I-sandwich.
Rule #3: We only stem change E to I, or O to U (not e-ie or o-ue)