Future: Regular Verbs: 'IR' Verbs
Spanish: Cambridge International GCSE, topic 10.1.3
IR Verbs in the Future Tense
AR, ER and IR Verbs have the same set of endings in the Future Tense. To form the future tense with IR verbs, do not remove the infinitive ending and add the future endings. Here is the example with 'vivir':

Viviré - I will live

Vivirás - you will live (singular)

Vivirá - he/she will live / you will live (formal)

Viviremos - we will live

Viviréis - you will live (plural)

Vivirán - they will live / you will live (formal plural)
Test yourself on Future: Regular Verbs: 'IR' Verbs
How do you say 'you will leave' in Spanish?