| Base Form: | Undergo |
| Past Simple: | Underwent |
| Past Participle: | Undergone |
| 3rd Person Singular: | Undergoes |
| Present Participle/Gerund: | Undergoing |
| Base Form | Past Simple | Past Participle |
|---|---|---|
| Go | Went | Gone/Been |
Irregular Verb List (PDF)
Download the PDF version of our Common Irregular Verb List which is perfect to print and share.
