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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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?