Word Forms of "undo" (5 forms)

Noun

Form	Word
Plural	undos

Pluralundos

Verb

Form	Word
Participle, Past	undone
Participle, Present	undoing
Past	undid
Present, Singular, Third-Person	undoes

Participle, Pastundone

Participle, Presentundoing

Pastundid

Present, Singular, Third-Personundoes

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.