ought to undo
Irregular verb: undo - undid- undone

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to undo
you ought to undo
he ought to undo
we ought to undo
you ought to undo
they ought to undo 	I ought to be undoing
you ought to be undoing
he ought to be undoing
we ought to be undoing
you ought to be undoing
they ought to be undoing	I ought to have undone
you ought to have undone
he ought to have undone
we ought to have undone
you ought to have undone
they ought to have undone	I ought to have been undoing
you ought to have been undoing
he ought to have been undoing
we ought to have been undoing
you ought to have been undoing
they ought to have been undoing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to undo
you ought not to undo
he ought not to undo
we ought not to undo
you ought not to undo
they ought not to undo 	I ought not to undoing
you ought not to undoing
he ought not to undoing
we ought not to undoing
you ought not to undoing
they ought not to undoing	I ought not to have undone
you ought not to have undone
he ought not to have undone
we ought not to have undone
you ought not to have undone
they ought not to have undone	I ought not to have been undoing
you ought not to have been undoing
he ought not to have been undoing
we ought not to have been undoing
you ought not to have been undoing
they ought not to have been undoing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I undo?
ought to you undo?
ought to he undo?
ought to we undo?
ought to you undo?
ought to they undo? 	ought to I be undoing?
ought to you be undoing?
ought to he be undoing?
ought to we be undoing?
ought to you be undoing?
ought to they be undoing? 	ought to I have undone?
ought to you have undone?
ought to he have undone?
ought to we have undone?
ought to you have undone?
ought to they have undone? 	ought to I have been undoing?
ought to you have been undoing?
ought to he have been undoing?
ought to we have been undoing?
ought to you have been undoing?
ought to they have been undoing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to undo?
ought you not to undo?
ought he not to undo?
ought we not to undo?
ought you not to undo?
ought they not to undo? 	ought I not to be undoing?
ought you not to be undoing?
ought he not to be undoing?
ought we not to be undoing?
ought you not to be undoing?
ought they not to be undoing? 	ought I not to have undone?
ought you not to have undone?
ought he not to have undone?
ought we not to have undone?
ought you not to have undone?
ought they not to have undone? 	ought I not to have been undoing?
ought you not to have been undoing?
ought he not to have been undoing?
ought we not to have been undoing?
ought you not to have been undoing?
ought they not to have been undoing?