Objective.
The objective of this exercise is to practise the use of stem-changing verbs in Spanish.

Method.
By now, you have learned two stem changes in Spanish verbs. In both cases, there is a specific vowel in the verbal stem (e, o) which, when stressed, becomes a diphtong (ie, ue). These changes may occur in any verb, regardless of the group it belongs to.

The final change you will learn in Spanish only occurs in the “-ir” group. Once again, these verbs will have the vowel “e” in their stem. However, this time the “e” will change into a different vowel, which is “i”, instead of a diphtong. Consult the below table to see how such verbs behave. Just like in previous stem changes, it will only happen when the stem is stressed. The changes are bolded and coloured in purple. Stressed syllables are underlined. Note how the irregularity follows the L-shape pattern.

Regarding the exercise, there is an incomplete dialogue. You will read it carefully and complete it by choosing the adecuate conjugated form of the verb in the parentheses. Remember to always match the verb with the grammatical subject. You may follow the below solutions for further guidance.

1. pides
2. pido
3. sirve
4. sirven
5. pedimos

Objective.
The purpose of this exercise is to practise the use of stem-changing verbs in Spanish.

Method.
In this exercise, there is a set of five incomplete sentences. You will read them carefully to understand them. Then, you will complete them by using the adecuate conjugated form of the verb from the parentheses. Remember to always match the grammatical subject with the verb. You may follow the below solutions for further guidance.

1. pide
2. pedimos
3. pides
4. sirve
5. sirven

Objective.
The purpose of this exercise is to practise writing in Spanish whilst using stem-changing verbs.

Method.
For this exercise, you will answer three questions. Read them carefully and respond according to your preferences. Pay attention to stem changes and remember to always match the verb with the grammatical subject. Given the personal nature of this exercise, only use the below examples as a reference.

Examples.

1. Muchas veces pido carne con verduras de plato principal.
2. Mis amigos piden hamburguesas con patatas fritas.
3. Almuerzo en casa o en un restaurante.