English verb conjugation
OUGHT TO UNDERSIGN

Regular verb: undersign - undersigned - undersigned

Affirmation

Simple form	V-ing form
I ought to undersign you ought to undersign he ought to undersign we ought to undersign you ought to undersign they ought to undersign	I ought to be undersigning you ought to be undersigning he ought to be undersigning we ought to be undersigning you ought to be undersigning they ought to be undersigning
Perfect	V-ing perfect
I ought to have undersigned you ought to have undersigned he ought to have undersigned we ought to have undersigned you ought to have undersigned they ought to have undersigned	I ought to have been undersigning you ought to have been undersigning he ought to have been undersigning we ought to have been undersigning you ought to have been undersigning they ought to have been undersigning

Negation

Simple form	V-ing form
I oughtn't to undersign you oughtn't to undersign he oughtn't to undersign we oughtn't to undersign you oughtn't to undersign they oughtn't to undersign	I oughtn't to be undersigning you oughtn't to be undersigning he oughtn't to be undersigning we oughtn't to be undersigning you oughtn't to be undersigning they oughtn't to be undersigning
Perfect	V-ing perfect
I oughtn't to have undersigned you oughtn't to have undersigned he oughtn't to have undersigned we oughtn't to have undersigned you oughtn't to have undersigned they oughtn't to have undersigned	I oughtn't to have been undersigning you oughtn't to have been undersigning he oughtn't to have been undersigning we oughtn't to have been undersigning you oughtn't to have been undersigning they oughtn't to have been undersigning

Interrogative form

Simple form	V-ing form
ought to I undersign? ought to you undersign? ought to he undersign? ought to we undersign? ought to you undersign? ought to they undersign?	ought to I be undersigning? ought to you be undersigning? ought to he be undersigning? ought to we be undersigning? ought to you be undersigning? ought to they be undersigning?
Perfect	V-ing perfect
ought to I have undersigned? ought to you have undersigned? ought to he have undersigned? ought to we have undersigned? ought to you have undersigned? ought to they have undersigned?	ought to I have been undersigning? ought to you have been undersigning? ought to he have been undersigning? ought to we have been undersigning? ought to you have been undersigning? ought to they have been undersigning?

Interro-negative form

Simple form	V-ing form
oughtn't I to undersign? oughtn't you to undersign? oughtn't he to undersign? oughtn't we to undersign? oughtn't you to undersign? oughtn't they to undersign?	oughtn't I to be undersigning? oughtn't you to be undersigning? oughtn't he to be undersigning? oughtn't we to be undersigning? oughtn't you to be undersigning? oughtn't they to be undersigning?
Perfect	V-ing perfect
oughtn't I to have undersigned? oughtn't you to have undersigned? oughtn't he to have undersigned? oughtn't we to have undersigned? oughtn't you to have undersigned? oughtn't they to have undersigned?	oughtn't I to have been undersigning? oughtn't you to have been undersigning? oughtn't he to have been undersigning? oughtn't we to have been undersigning? oughtn't you to have been undersigning? oughtn't they to have been undersigning?