There are three kinds of stem-changing boot verbs. They are e-i, e-ie, o-ue. Given the Spanish infinitive and the English verb form, you spell the Spanish verb in the correct tense with the proper stem changes. (16 total verbs included, 10 randomly chosen for each activity.)
Or log in to play for credit.
This activity is tracked by Ms. Taplin. If you are in Ms. Taplin's class, please log in for credit: