HUH uhh clock without a boss
Los amigos <u><em>van</em></u> al concierto el viernes.
Answer:
Three types of stem changing verbs
Explanation:
e-ie stem-changing verbs: verbs in which an e in the stem changes to an ie.
e-i stem-changing verbs: verbs in which an e in the stem changes to an i.
o-ue stem-changing verbs: verbs in which an o in the stem changes to a ue.
