1. El pretérito The preterite stem-changers

2. -ir verbs Endings for –ir verbs -í -iste -ió -imos -isteis -ieron These endings are added to most –ir verbs

3. escribir – to write escribí escribiste escribió escribimos escribisteis escribieron Yo escribí en español. I wrote in Spanish The endings are the same as –er verbs í imos iste isteis ió ieron

4. Present tense –ir stem-changers (boot verbs) also have a stem- change in the preterite tense. The change is a little different. In the preterite they are called the “Sandal Verbs”

5. dormir(ue,u) – to sleep dormí dormiste durmió dormimos dormisteis durmieron Ella no durmió bien anoche. She did not sleep well last night. The “o” changes to “u” in the 3 rd persons only.

6. When you look up stem- changing verbs in the dictionary, for example: dormir (ue,u) present tense “boot” stem-change / preterite tense “sandal” stem-change

7. dormir (ue,u) The “ue” refers to the stem-change in the present tense. duermo duermes duerme dormimos dormís duermen Remember the forms that have the stem-change in the present tense form the boot shape. These are the “boot verbs”. ¿Duermes mucho? Do you sleep a lot?

8. dormir (ue,u) The “u” refers to the stem-change in the preterite tense. dormí dormiste durmió dormimos dormisteis durmieron The forms that have the stem-change in the preterite tense form more of a “sandal” shape. These are the “sandal verbs”.

9. REMEMBER!! Present Tense – Boot Verbs / Preterite Tense – Sandal Verbs dormir (ue, u) pedir (i, i) preferir (ie, i) mentir (ie, i) repetir (i, i) sentir (ie, i) We have already learned the Boot Verbs when we learned the present tense. This lección, we are learning the Preterite Sandal Verbs.

10. pedir(i,i) – to request, ask for pedí pediste pidió pedimos pedisteis pidieron Ud. pidió la ensalada. You ordered the salad. The “e” changes to “i” in the 3 rd persons only.

11. preferir (ie, i) – to prefer preferí preferiste prefirió preferimos preferisteis prefirieron Uds. prefirieron español. You prefered Spanish. The “e” changes to “i” in the 3 rd persons only.