Final answer:
The correct conjugation of the verb ir to complete the sentence 'Yo ir al cine con mis amigos esta noche.' is voy.
Step-by-step explanation:
The correct conjugation of the verb ir to complete the sentence 'Yo ir al cine con mis amigos esta noche.' is voy. So the completed sentence would be 'Yo voy al cine con mis amigos esta noche.'
Learn more about Spanish verb conjugation