Regular stem changing verbs

o to ue 

Many verbs that contain o in the stem change the o to ue in the present tense except in the nosotros and vosotros forms. 

This change occurs in the syllable directly before the verb ending.

These verbs have regualr endings in the present tense.

to eat lunch 

to count 

to cost 

to return, to give back 

to sleep 

to die 

To find, to meet 

to show 

to remember 

to sound, to ring (bell) 

to fly 

to be able, can, may 

to solve, to resolve 

to return, come (go) back