English verb conjugation
OUGHT TO UNDO

Irregular verb: undo - undid - undone

Affirmation

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