Undo: undo – undid – undone
Irregular verb, level B1.
Base form (V1)undo
Past simple (V2)undid
Past participle (V3)undone
Meaning
Open or change back what was done.
Examples for each form
Base form (V1)
Can you undo this knot for me?
Past simple (V2)
She undid her coat and sat down.
Past participle (V3)
The knot has been undone.
Check yourself
Write the past simple and the past participle of undo.
All three forms are different
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