Question

To conjugate -ir verbs, such as vivir, first you should _____.

Answer 1

Well there's not one answer, different people do it different  ways  but I'll tell you all the steps and you choose what comes first:

First I would use -ir chart then for whatever person it is you would replace that with -ir

Answer 2

Answer:

... put the -ir ending away, to get the root of the verb, then add the endings acording to the subject  you have been given.

yo viv-o                         nosotros/as viv-imos

tu viv-es                        vosotros/as viv-ís

él/ella/usted viv-e        ellos/as/ustedes viv-en

Explanation: