Practice Stem-Changing Verbs

Fill in the blanks with the correct stem-changing verb form

Stem Change Patterns

E → IEpensar, querer, preferir

O → UEpoder, dormir, volver

E → Ipedir, servir, repetir

Select an Exercise

Exercise 1E → IE Stem-Changing VerbsPractice verbs like pensar, querer, preferir where E changes to IEBeginner

Exercise 2O → UE Stem-Changing VerbsPractice verbs like poder, dormir, volver where O changes to UEBeginner

Exercise 3E → I Stem-Changing VerbsPractice -ir verbs like pedir, servir, repetir where E changes to IBeginner

Exercise 4Mixed Stem ChangesPractice all stem change types together - e→ie, o→ue, and e→iElementary

Exercise 5The Nosotros/Vosotros TrapFocus on nosotros and vosotros forms - remember, they DON'T stem change!Intermediate

Exercise 6Preterite Stem ChangesOnly -ir verbs change in preterite, and only in 3rd person (él/ella/ellos). E→I and O→U.Intermediate

Exercise 7Present Subjunctive Stem ChangesStem changes in subjunctive. Note: -ir verbs also change in nosotros/vosotros (e→i, o→u)!Intermediate

Exercise 8Gerunds with Stem ChangesOnly -ir stem-changing verbs change in the gerund: e→i (pidiendo) and o→u (durmiendo).Intermediate

Need to learn the rules first? Check out our comprehensive grammar guides:

Stem-Changing Verbs Grammar Guide