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