English verb conjugation
OUGHT TO FASTEN

Regular verb: fasten - fastened - fastened

Affirmation

Simple form	V-ing form
I ought to fasten you ought to fasten he ought to fasten we ought to fasten you ought to fasten they ought to fasten	I ought to be fastening you ought to be fastening he ought to be fastening we ought to be fastening you ought to be fastening they ought to be fastening
Perfect	V-ing perfect
I ought to have fastened you ought to have fastened he ought to have fastened we ought to have fastened you ought to have fastened they ought to have fastened	I ought to have been fastening you ought to have been fastening he ought to have been fastening we ought to have been fastening you ought to have been fastening they ought to have been fastening

Negation

Simple form	V-ing form
I oughtn't to fasten you oughtn't to fasten he oughtn't to fasten we oughtn't to fasten you oughtn't to fasten they oughtn't to fasten	I oughtn't to be fastening you oughtn't to be fastening he oughtn't to be fastening we oughtn't to be fastening you oughtn't to be fastening they oughtn't to be fastening
Perfect	V-ing perfect
I oughtn't to have fastened you oughtn't to have fastened he oughtn't to have fastened we oughtn't to have fastened you oughtn't to have fastened they oughtn't to have fastened	I oughtn't to have been fastening you oughtn't to have been fastening he oughtn't to have been fastening we oughtn't to have been fastening you oughtn't to have been fastening they oughtn't to have been fastening

Interrogative form

Simple form	V-ing form
ought to I fasten? ought to you fasten? ought to he fasten? ought to we fasten? ought to you fasten? ought to they fasten?	ought to I be fastening? ought to you be fastening? ought to he be fastening? ought to we be fastening? ought to you be fastening? ought to they be fastening?
Perfect	V-ing perfect
ought to I have fastened? ought to you have fastened? ought to he have fastened? ought to we have fastened? ought to you have fastened? ought to they have fastened?	ought to I have been fastening? ought to you have been fastening? ought to he have been fastening? ought to we have been fastening? ought to you have been fastening? ought to they have been fastening?

Interro-negative form

Simple form	V-ing form
oughtn't I to fasten? oughtn't you to fasten? oughtn't he to fasten? oughtn't we to fasten? oughtn't you to fasten? oughtn't they to fasten?	oughtn't I to be fastening? oughtn't you to be fastening? oughtn't he to be fastening? oughtn't we to be fastening? oughtn't you to be fastening? oughtn't they to be fastening?
Perfect	V-ing perfect
oughtn't I to have fastened? oughtn't you to have fastened? oughtn't he to have fastened? oughtn't we to have fastened? oughtn't you to have fastened? oughtn't they to have fastened?	oughtn't I to have been fastening? oughtn't you to have been fastening? oughtn't he to have been fastening? oughtn't we to have been fastening? oughtn't you to have been fastening? oughtn't they to have been fastening?