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and
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Stem-changing verbs (review): |
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type of irregular verb but with a predictable change and regular present tense endings |
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change occur in the stem of the verb in certain forms |
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characterized by changes in vowels in the stem of the verb |
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stem - part of verb without -ar, -er, or -ir infinitive ending |
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impossible to identify a stem-changing verb by looking at it; must remember which ones are stem-changers |
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vowel in stressed syllable changes |
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syllable before infinitive ending |
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stem change occurs in all singular forms (yo, tú, él, ella, Ud.) and third person plural (ellos/as, Uds.) |
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stem change does not occur in the first person plural (nosotros) or second person plural (vosotros) |
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Stem-changing verbs: e → i |
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all e to i stem changing verbs are -ir verbs (but not all -ir verbs are e to i stem changing verbs) |
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only -ir verbs can have e to i stem change |
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list of e to i stem changing verbs is short |
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stem change occurs in all singular forms (yo, tú, él, ella, Ud.) and third person plural (ellos/as, Uds.) |
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stem change does not occur in the first person plural (nosotros) or second person plural (vosotros) |
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Subject |
Verb ending |
Subject | Verb ending | ||
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Singular |
Plural |
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| 1st | yo | e → i | nosotros/as | no change | |
| 2nd | tú | e → i | vosotros/as | no change | |
| 3rd | él, ella, Ud. | o → ue | ellos/ellas/Uds. | o → ue | |
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pedir (i) (to ask for, to order) |
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servir (i) (to serve) |
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