Stem-Changing Verbs (Part II)
 I. Intro
Let’s review what we learned in the previous lesson about stem-changing verbs.
-  A verb consists of 2 parts: a stem + an ending 
 -  Whatever comes before -ar, -er, -ir, is called the verb stem 
 -  All verbs end in either -ar, -er, or -ir. If it doesn’t have one of these three endings, it’s not a verb! 
 
We also learned that there are 3 main groups of stem changing verbs:
-  Verbs that change from (e:ie) / -ar, -er, -ir verbs 
 -  Verbs that change from (o:ue) / -ar, -er, -ir verbs 
 -  Verbs that change from (e:i) / -ir verbs only 
 
In this lesson, we learn groups 2 + 3, and briefly discuss special exceptions.
II. Stem-Changing Verbs - Group 2 (o:ue)
 -AR  |  -ER  |  -IR  | 
|  costar  |  volver  |  morir  | 
|  contar  |  poder  |  dormir  | 
|  encontrar  |  mover  |   | 
|  rogar  |  soler  |   | 
|  recordar  |  resolver  |   | 
|  mostrar  |   |   |