The verb "go
" is irregular since it is conjugated past forms are "went" and "gone"
. That is, "went" (past form in general) and "gone" for past participle.https://mytargetidiomas.com.br/blog/lista-de-verbos-irregulares-em-ingles-irregular-verbs/
In other words, verbs that don´t end with -ed
in their simple past and past participle forms, are called regular. Let´s pick, for example, WORK/LOOK/USE, etc.
The irregularity concerns the past tense (also called preterite) or the past participle (Wikipedia).