English: undo

English verb 'undo' conjugated in all tenses

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Nominal Forms

Infinitive: to undo
Participle: undone
Gerund: undoing

Indicative

Present

Iundo
youundo
he;she;itundoes
weundo
youundo
theyundo

Perfect

Ihave undone
youhave undone
he;she;ithas undone
wehave undone
youhave undone
theyhave undone

Past

Iundid
youundid
he;she;itundid
weundid
youundid
theyundid

Pluperfect

Ihad undone
youhad undone
he;she;ithad undone
wehad undone
youhad undone
theyhad undone

Future

Iwill undo
youwill undo
he;she;itwill undo
wewill undo
youwill undo
theywill undo

Future perfect

Iwill have undone
youwill have undone
he;she;itwill have undone
wewill have undone
youwill have undone
theywill have undone

Subjunctive

Present

Iundo
youundo
he;she;itundo
weundo
youundo
theyundo

Perfect

Ihave undone
youhave undone
he;she;ithave undone
wehave undone
youhave undone
theyhave undone

Imperfect

Iundid
youundid
he;she;itundid
weundid
youundid
theyundid

Pluperfect

Ihad undone
youhad undone
he;she;ithad undone
wehad undone
youhad undone
theyhad undone

Conditional

Present

Iwould undo
youwould undo
he;she;itwould undo
wewould undo
youwould undo
theywould undo

Perfect

Iwould have undone
youwould have undone
he;she;itwould have undone
wewould have undone
youwould have undone
theywould have undone

Imperative

youundo
weLet's undo
youundo

Progressive (Continuous) Forms

Indicative

Present

Iam undoing
youare undoing
he;she;itis undoing
weare undoing
youare undoing
theyare undoing

Perfect

Ihave been undoing
youhave been undoing
he;she;ithas been undoing
wehave been undoing
youhave been undoing
theyhave been undoing

Past

Iwas undoing
youwere undoing
he;she;itwas undoing
wewere undoing
youwere undoing
theywere undoing

Pluperfect

Ihad been undoing
youhad been undoing
he;she;ithad been undoing
wehad been undoing
youhad been undoing
theyhad been undoing

Future

Iwill be undoing
youwill be undoing
he;she;itwill be undoing
wewill be undoing
youwill be undoing
theywill be undoing

Future perfect

Iwill have been undoing
youwill have been undoing
he;she;itwill have been undoing
wewill have been undoing
youwill have been undoing
theywill have been undoing

Conditional

Present

Iwould be undoing
youwould be undoing
he;she;itwould be undoing
wewould be undoing
youwould be undoing
theywould be undoing

Perfect

Iwould have been undoing
youwould have been undoing
he;she;itwould have been undoing
wewould have been undoing
youwould have been undoing
theywould have been undoing

Verbs conjugated like undo

do, outdo, overdo, redo, undo,

Additional Information

Phrasal Verbs

Etymology

O.E. undon "to unfasten and open" (a window or door), "to unfasten by releasing from a fixed position," from un- (2) + do. Undone "not accomplished" is recorded from c.1300; sense of "destroyed" is recorded from 1340; the notion is of "to annul something that was done." Undoing "action of bringing to ruin" is recorded from 1398.