Spanish
Grade 10
15 min
Verbos con cambio de raiz
What you'll learn
- Identify at least 6 stem-changing verbs (e-ie, o-ue, e-i) from a list of 10 verbs with 80% accuracy.
- Explain, in simple terms, the rules for stem-changing verbs (e-ie, o-ue, e-i) using at least 2 examples for each type.
- Correctly conjugate at least 4 out of 5 stem-changing verbs (e-ie, o-ue, e-i) in simple sentences, demonstrating the correct stem change for each.
- Apply stem-changing verbs correctly in a short paragraph of at least 5 sentences about a daily routine, with no more than 1 error in verb conjugation.
Tutorial Preview
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Introduction & Learning Objectives
Learning Objectives
Identify the two types of stem changes that occur in the irregular preterite (e -> i, o -> u).
Recognize that only -ir verbs undergo a stem change in the preterite tense.
Correctly conjugate common e -> i stem-changing verbs (e.g., pedir, sentir, preferir) in the preterite.
Correctly conjugate common o -> u stem-changing verbs (e.g., dormir, morir) in the preterite.
Differentiate between present tense stem-changing patterns and the simplified preterite stem-changing patterns.
Apply the correct preterite stem-changing conjugations in written sentences to narrate past events.
Ever told a story about what a friend ordered at a restaurant or how you felt at a concert last week? 🤔 Let's master the verbs that make those stories precise!
This...
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Key Concepts & Vocabulary
TermDefinitionExample
Cambio de Raíz (Stem Change)A vowel change that occurs in the stem (the part of the verb before -ar, -er, or -ir) during conjugation.In the verb 'pedir', the stem 'ped-' changes to 'pid-' in certain preterite forms (e.g., 'pidió').
Pretérito (Preterite Tense)A past tense used to describe actions that were completed at a specific point in the past.'Ayer, yo comí pizza.' (Yesterday, I ate pizza.)
Verbos de 'Sandalia'A mnemonic device to remember that preterite stem changes only happen in the third-person singular (él, ella, usted) and third-person plural (ellos, ellas, ustedes) forms.For 'sentir': yo sentí, tú sentiste, él sintió, nosotros sentimos, ellos sintieron. The change only occurs in 'si...
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Grammar Rules & Patterns
The '-IR' Exclusivity Rule
Only -ir verbs that stem-change in the present tense can have a stem change in the preterite.
Verbs ending in -ar and -er (like 'pensar' or 'volver') NEVER have a stem change in the preterite, even if they do in the present. This rule is exclusive to -ir verbs.
The 'Sandalia' Conjugation Pattern
The stem change (e -> i or o -> u) only occurs in the third-person singular (él/ella/Ud.) and third-person plural (ellos/ellas/Uds.) forms.
The yo, tú, nosotros/as, and vosotros/as forms are conjugated like regular preterite -ir verbs without any stem change. The change is isolated to the 'bottom' two forms of the conjugation chart.
The Simple Vowel Change Rule
Preterite stem changes are simplifi...
4 more steps in this tutorial
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Sign Up Free to ContinueSample Practice Questions
Easy
Which type of verb is the ONLY one that can have a stem change in the preterite tense?
A.-ar verbs
B.-er verbs
C.-ir verbs
D.All verb types
Easy
The mnemonic 'verbos de sandalia' refers to the fact that preterite stem changes only occur in which two forms?
A.yo and tú
B.nosotros and vosotros
C.él/ella/Ud. and ellos/ellas/Uds.
D.tú and él/ella/Ud.
Easy
What is the correct preterite conjugation of 'pedir' for the subject 'yo'?
A.pidí
B.pedí
C.pedió
D.pido
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Frequently asked questions
What grade level is "Verbos con cambio de raiz"?
Verbos con cambio de raiz is a Grade 10 Spanish lesson on ExcelOS.
What will I learn in Verbos con cambio de raiz?
You'll be able to: Identify at least 6 stem-changing verbs (e-ie, o-ue, e-i) from a list of 10 verbs with 80% accuracy; Explain, in simple terms, the rules for stem-changing verbs (e-ie, o-ue, e-i) using at least 2 examples for each type….
Is "Verbos con cambio de raiz" free to practice?
Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.
How many practice questions are included with Verbos con cambio de raiz?
This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.