English verb conjugation
OUGHT TO FLUNK

Regular verb: flunk - flunked - flunked

Affirmation

Simple form	V-ing form
I ought to flunk you ought to flunk he ought to flunk we ought to flunk you ought to flunk they ought to flunk	I ought to be flunking you ought to be flunking he ought to be flunking we ought to be flunking you ought to be flunking they ought to be flunking
Perfect	V-ing perfect
I ought to have flunked you ought to have flunked he ought to have flunked we ought to have flunked you ought to have flunked they ought to have flunked	I ought to have been flunking you ought to have been flunking he ought to have been flunking we ought to have been flunking you ought to have been flunking they ought to have been flunking

Negation

Simple form	V-ing form
I oughtn't to flunk you oughtn't to flunk he oughtn't to flunk we oughtn't to flunk you oughtn't to flunk they oughtn't to flunk	I oughtn't to be flunking you oughtn't to be flunking he oughtn't to be flunking we oughtn't to be flunking you oughtn't to be flunking they oughtn't to be flunking
Perfect	V-ing perfect
I oughtn't to have flunked you oughtn't to have flunked he oughtn't to have flunked we oughtn't to have flunked you oughtn't to have flunked they oughtn't to have flunked	I oughtn't to have been flunking you oughtn't to have been flunking he oughtn't to have been flunking we oughtn't to have been flunking you oughtn't to have been flunking they oughtn't to have been flunking

Interrogative form

Simple form	V-ing form
ought to I flunk? ought to you flunk? ought to he flunk? ought to we flunk? ought to you flunk? ought to they flunk?	ought to I be flunking? ought to you be flunking? ought to he be flunking? ought to we be flunking? ought to you be flunking? ought to they be flunking?
Perfect	V-ing perfect
ought to I have flunked? ought to you have flunked? ought to he have flunked? ought to we have flunked? ought to you have flunked? ought to they have flunked?	ought to I have been flunking? ought to you have been flunking? ought to he have been flunking? ought to we have been flunking? ought to you have been flunking? ought to they have been flunking?

Interro-negative form

Simple form	V-ing form
oughtn't I to flunk? oughtn't you to flunk? oughtn't he to flunk? oughtn't we to flunk? oughtn't you to flunk? oughtn't they to flunk?	oughtn't I to be flunking? oughtn't you to be flunking? oughtn't he to be flunking? oughtn't we to be flunking? oughtn't you to be flunking? oughtn't they to be flunking?
Perfect	V-ing perfect
oughtn't I to have flunked? oughtn't you to have flunked? oughtn't he to have flunked? oughtn't we to have flunked? oughtn't you to have flunked? oughtn't they to have flunked?	oughtn't I to have been flunking? oughtn't you to have been flunking? oughtn't he to have been flunking? oughtn't we to have been flunking? oughtn't you to have been flunking? oughtn't they to have been flunking?