to think

(e to ie)

to be able to, can

(o to ue) 

to ask for

(e to i) 

to being

(e to ie) 

to confess

(e to ie)

to defend

(e to ie)

to wake up

(e to ie)

to have fun

(e to ie)

to begin

(e to ie)

to light, to turn on

(e to ie)

to understand

(e to ie)

to refuse

(e to ie)

to lose

(e to ie)

to prefer

(e to ie)

to want, to love

(e to ie)

to refer

(e to ie)

to sit

(e to ie)

to feel

(e to ie)

to suggest

(e to ie)

to remember

(o to ue) 

to go to bed

(o to ue)

to have lunch

(o to ue)

to hang

(o to ue)

to tell, to count

(o to ue)

to cost

(o to ue)

to sleep

(o to ue)

to find

(o to ue)

to die

(o to ue)

to show

(o to ue)

to move

(o to ue)

to try

(o to ue)

to remember

(o to ue)

to solve

(o to ue)

to be in the habit of, to usually

(o to ue)

to dream

(o to ue)

to return

(o to ue) 

to say goodbye

(e to i) 

to impede, to interfere with

(e to i)

to laugh

(e to i)

to repeat

(e to i)

to serve

(e to i)

to smile

(e to i)

to get dressed

(e to i) 

to choose

(e to i)

(g to j in the yo form) 

to correct

(e to i)

(g to j in the yo form) 

to twist

(o to ue)

(c to z in the yo form) 

to follow

(e to i)

(drops the u in the yo form) 

to obtain

(e to i)

(drops the u in the yo form)

to include

(add y between stem vowel and personal ending, except in nosotros and vosotros form) 

to construct

(add y between stem vowel and personal ending, except in nosotros and vosotros form)

to destroy 

(add y between stem vowel and personal ending, except in nosotros and vosotros form)

to influence

(add y between stem vowel and personal ending, except in nosotros and vosotros form)