ir
irregular verb
ir + vay a + fu era + ib an + present voyvasvavamosvaisvan + preterite fuifue + imperfect íbamos + imperative ve + gerund yendo
“Quien no quiera ver lástimas, no vaya a la guerra.”
Whoever doesn’t want to see horrors shouldn’t go to war.
ir has an empty IR stem. As a result, some verb forms are no more than endings, for example iré, iría, ido, and of course the infinitive ir.
All present indicative forms are exceptions, but they also follow a pattern: it's almost as if ir had an irregular stem v- that took regular AR endings in the present indicative.