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ANTE TODO As you learned in Lección 6 , –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 charts in the next slide and observe where the stem changes occur.
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ANTE TODO • As you learned in Lección 6, –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 charts in the next slide and observe where the stem changes occur.
Stem-changing –ir verbs, in the preterite only, have a stem change in the Ud./él/ella and Uds./ellos/ellas forms. The stem change consists of either e to i or o to u. (ei) pedir : pidió, pidieron (o u) morir (to die) : murió, murieron
¡INTÉNTALO!Cambia los infinitivos al pretérito. • 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)