1. Preterite Tense of o-u Stem Changing Verbs

2. Some verbs in Spanish are a little trickier when you conjugate them in the preterite because some forms take on a spelling change in their stem. Look at the following forms of the verb “dormir”: yodormí nosotros dormimos túdormiste Ud./él/ella durmió Uds./ellos/ellas durmieron Notice how the o changed to u in the bottom two forms (Ud./él/ella and Uds./ellos/ellas).

3. Let’s do some practice. What is the preterite “tú” form of the verb “dormir”? dormiste! That’s right… it’s durmieron! Let’s do a few more. What is the preterite “ellos” form of the verb “dormir”?

4. What is the preterite “nosotros” form of the verb “dormir”? dormimos! That’s right… it’s dormí! What is the preterite “yo” form of the verb “dormir”?

5. What is the preterite “ellos” form of the verb “dormir”? durmieron! That’s right… it’s dormimos! What is the preterite “nosotros” form of the verb “dormir”?

6. VOILA! See how easy that was? Now try some on your own – click the button to do a practice quiz. Practice Quiz Replay