With the third group of stem-changing verbs, the letter E in the stem changes to I in all forms except the nosotros and vosotros.
| Vestir(se) |
| (me) visto |
| (te) vistes |
| (se) viste |
| (nos) vestimos |
| (os) vestís |
| (se) visten |
Here's another E -> I stem-changing verb. Notice how the stem doesn't change in the nosotros and vosotros forms.
| pedir (E -> I) (to ask for) |
| pido |
| pides |
| pide |
| pedimos |
| pedís |
| piden |
Here is a list of common e -> i stem-changing verbs.
| corregir | to correct |
| decir | to say, tell |
| despedir | to dismiss, fire |
| elegir | to elect |
| freír | to fry |
| gemir | to groan, moan |
| perseguir | to pursue, to persecute |
| reír | to laugh |
| repetir | to repeat |
| seguir | to follow, continue |
| servir | to serve |
| sonreír | to smile |