English verb conjugation
OUGHT TO UNFASTEN

Regular verb: unfasten - unfastened - unfastened

Affirmation

Simple form	V-ing form
I ought to unfasten you ought to unfasten she ought to unfasten we ought to unfasten you ought to unfasten they ought to unfasten	I ought to be unfastening you ought to be unfastening she ought to be unfastening we ought to be unfastening you ought to be unfastening they ought to be unfastening
Perfect	V-ing perfect
I ought to have unfastened you ought to have unfastened she ought to have unfastened we ought to have unfastened you ought to have unfastened they ought to have unfastened	I ought to have been unfastening you ought to have been unfastening she ought to have been unfastening we ought to have been unfastening you ought to have been unfastening they ought to have been unfastening

Negation

Simple form	V-ing form
I oughtn't to unfasten you oughtn't to unfasten she oughtn't to unfasten we oughtn't to unfasten you oughtn't to unfasten they oughtn't to unfasten	I oughtn't to be unfastening you oughtn't to be unfastening she oughtn't to be unfastening we oughtn't to be unfastening you oughtn't to be unfastening they oughtn't to be unfastening
Perfect	V-ing perfect
I oughtn't to have unfastened you oughtn't to have unfastened she oughtn't to have unfastened we oughtn't to have unfastened you oughtn't to have unfastened they oughtn't to have unfastened	I oughtn't to have been unfastening you oughtn't to have been unfastening she oughtn't to have been unfastening we oughtn't to have been unfastening you oughtn't to have been unfastening they oughtn't to have been unfastening

Interrogative form

Simple form	V-ing form
ought to I unfasten? ought to you unfasten? ought to she unfasten? ought to we unfasten? ought to you unfasten? ought to they unfasten?	ought to I be unfastening? ought to you be unfastening? ought to she be unfastening? ought to we be unfastening? ought to you be unfastening? ought to they be unfastening?
Perfect	V-ing perfect
ought to I have unfastened? ought to you have unfastened? ought to she have unfastened? ought to we have unfastened? ought to you have unfastened? ought to they have unfastened?	ought to I have been unfastening? ought to you have been unfastening? ought to she have been unfastening? ought to we have been unfastening? ought to you have been unfastening? ought to they have been unfastening?

Interro-negative form

Simple form	V-ing form
oughtn't I to unfasten? oughtn't you to unfasten? oughtn't she to unfasten? oughtn't we to unfasten? oughtn't you to unfasten? oughtn't they to unfasten?	oughtn't I to be unfastening? oughtn't you to be unfastening? oughtn't she to be unfastening? oughtn't we to be unfastening? oughtn't you to be unfastening? oughtn't they to be unfastening?
Perfect	V-ing perfect
oughtn't I to have unfastened? oughtn't you to have unfastened? oughtn't she to have unfastened? oughtn't we to have unfastened? oughtn't you to have unfastened? oughtn't they to have unfastened?	oughtn't I to have been unfastening? oughtn't you to have been unfastening? oughtn't she to have been unfastening? oughtn't we to have been unfastening? oughtn't you to have been unfastening? oughtn't they to have been unfastening?