Answer:
In stem-changing verbs in the present tense, the letter 'i' changes to 'ie' in the second and third person singular (tú and él/ella/usted) and in all persons plural (nosotros/nosotras, vosotros/vosotras, and ellos/ellas/ustedes).
Step-by-step explanation:
In stem-changing verbs in the present tense, the letter 'i' changes to 'ie' in the second and third person singular (tú and él/ella/usted) and in all persons plural (nosotros/nosotras, vosotros/vosotras, and ellos/ellas/ustedes).
For example, in the verb "querer" (to want), the stem change occurs in the second and third person singular and all persons plural, as follows:
- Yo quiero
- Tú quieres
- Él/ella/usted quiere
- Nosotros/nosotras queremos
- Vosotros/vosotras queréis
- Ellos/ellas/ustedes quieren