empezar (change)
e to ie
querer (change)
e to ie
preferir (change)
e to ie
comenzar (change)
e to ie
entender (change)
e to ie
mentir (change)
e to ie
pensar (change)
e to ie
perder (change)
e to ie
tener (change)
e to ie
recomendar (change)
e to ie
cerrar (change)
e to ie
pedir (change)
e to i
repetir (change)
e to i
sonreír (change)
e to i
seguir (change)
e to i
servir (change)
e to i
jugar (change)
u to ue
dormir (change)
o to ue
contar (change)
o to ue
soñar (change)
o to ue
costar (change)
o to ue
almorzar (change)
o to ue
mostrar (change)
o to ue
morir (change)
o to ue