What is a requirement for a verb to be a stem-changing verb in the preterite tense?

• It must be an IR verb and a stem-changing verb in the present tense.

• It must be an AR verb.

• It must be an ER verb.

• It must be a regular verb.

Which of the following is an example of a stem-changing verb in the preterite tense?

• Comer

• Preferir

• Hablar

• Vivir

In the present tense, how does the verb 'preferir' change?

• The A changes to an E.

• The E changes to an I.

• The E changes to an IE.

• The O changes to a U.

What is the main difference between 'sandal' verbs and 'boot' verbs?

• Sandal verbs affect only the bottom two forms, boot verbs affect four forms.

• Sandal verbs are regular, boot verbs are irregular.

• Sandal verbs are only in the present tense, boot verbs are in the preterite.

• Sandal verbs affect all forms, boot verbs do not.

Which of the following verbs changes from I to Y in the preterite tense?

• Dormir

• Leer

• Preferir

• Servir

What happens to the verb 'leer' in the preterite tense?

• The A changes to an E.

• The O changes to a U.

• The E changes to an I.

• The I changes to a Y.

Which verb form is affected by the 'sandal' rule in the preterite tense?

• Only the first person singular

• All forms

• Only the third person singular and plural

• Only the second person singular

What is the correct preterite form of 'dormir' for 'ellos'?

• Durmieron

• Dormieron

• Dormieron

• Dormieron

Which verb is an example of a 'sandal' verb?

• Hablar

• Dormir

• Vivir

• Comer

What is the preterite form of 'leer' for 'él'?

• Leyó

• Leió

• Leyo

• Leió