as you learned, -ar and -er stem-changing verbs have no stem change in the preterite. -ir...
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![Page 1: As you learned, -ar and -er stem-changing verbs have no stem change in the preterite. -Ir stem-changing verbs, however, do have a stem change. Study](https://reader033.vdocuments.us/reader033/viewer/2022061617/5665b4d01a28abb57c93eaf2/html5/thumbnails/1.jpg)
As you learned, -ar and -er stem-changing verbs have no stem change in the preterite.
-Ir stem-changing verbs, however, do have a stem change. Study the following chart and observe where the stem changes occur.
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8.1-1
![Page 2: As you learned, -ar and -er stem-changing verbs have no stem change in the preterite. -Ir stem-changing verbs, however, do have a stem change. Study](https://reader033.vdocuments.us/reader033/viewer/2022061617/5665b4d01a28abb57c93eaf2/html5/thumbnails/2.jpg)
Stem-changing -ir verbs, in the preterite only, have a stem change in the third-person singular and plural forms. The stem change consists of either e to i or o to u.
Copyright © 2008 Vista Higher Learning. All rights reserved.
8.1-2
![Page 3: As you learned, -ar and -er stem-changing verbs have no stem change in the preterite. -Ir stem-changing verbs, however, do have a stem change. Study](https://reader033.vdocuments.us/reader033/viewer/2022061617/5665b4d01a28abb57c93eaf2/html5/thumbnails/3.jpg)
Copyright © 2008 Vista Higher Learning. All rights reserved.
8.1-3
Cambia cada infinitivo al pretérito.
1. Yo _____. (servir, dormir, pedir, preferir, repetir, seguir)
2. Usted _____. (morir, conseguir, pedir, sentirse, despedirse, vestirse)
3. Tú _____. (conseguir, servir, morir, pedir, dormir, repetir)
4. Ellas _____. (repetir, dormir, seguir, preferir, morir, servir)
5. Nosotros _____. (seguir, preferir, servir, vestirse, despedirse, dormirse)
6. Ustedes _____. (sentirse, vestirse, conseguir, pedir, despedirse, dormirse)
7. Él _____. (dormir, morir, preferir, repetir, seguir, pedir)
serví