English verb conjugation
TO UNDO

Irregular verb: undo - undid - undone

Indicative

Present	Present continuous	Preterite	Preterite continuous
I undo you undo he undoes we undo you undo they undo	I'm undoing you're undoing he's undoing we're undoing you're undoing they're undoing	I undid you undid he undid we undid you undid they undid	I was undoing you were undoing he was undoing we were undoing you were undoing they were undoing
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
I've undone you've undone he's undone we've undone you've undone they've undone	I've been undoing you've been undoing he's been undoing we've been undoing you've been undoing they've been undoing	I'd undone you'd undone he'd undone we'd undone you'd undone they'd undone	I'd been undoing you'd been undoing he'd been undoing we'd been undoing you'd been undoing they'd been undoing
Future	Future continuous	Future perfect	Future perfect continuous
I'll undo you'll undo he'll undo we'll undo you'll undo they'll undo	I'll be undoing you'll be undoing he'll be undoing we'll be undoing you'll be undoing they'll be undoing	I'll have undone you'll have undone he'll have undone we'll have undone you'll have undone they'll have undone	I'll have been undoing you'll have been undoing he'll have been undoing we'll have been undoing you'll have been undoing they'll have been undoing

Conditional

Present	Present continuous	Past	Past continuous
I'd undo you'd undo he'd undo we'd undo you'd undo they'd undo	I'd be undoing you'd be undoing he'd be undoing we'd be undoing you'd be undoing they'd be undoing	I'd have undone you'd have undone he'd have undone we'd have undone you'd have undone they'd have undone	I'd have been undoing you'd have been undoing he'd have been undoing we'd have been undoing you'd have been undoing they'd have been undoing

Infinitive

Imperative

Infinitive		Imperative
to undo		undo Let's undo undo

Participle

Present	Past
undoing	undone