Regular –ir verbs

to open	to admit
to attend, assist	to discuss
to write	to receive
to climb, raise	to suffer
to live

Stem change –ir verbs

to lie	to prefer
to regret	to suggest
to sleep	to die
to dismiss, fire	to fry
to impede	to measure
to ask for	to laugh
to argue	to repeat
to serve	to smile
to follow	to say
to come	to go