English verb conjugation
OUGHT TO UNDERPROP

Regular verb: underprop - underproped - underproped

Affirmation

Simple form	V-ing form
I ought to underprop you ought to underprop he ought to underprop we ought to underprop you ought to underprop they ought to underprop	I ought to be underproping you ought to be underproping he ought to be underproping we ought to be underproping you ought to be underproping they ought to be underproping
Perfect	V-ing perfect
I ought to have underproped you ought to have underproped he ought to have underproped we ought to have underproped you ought to have underproped they ought to have underproped	I ought to have been underproping you ought to have been underproping he ought to have been underproping we ought to have been underproping you ought to have been underproping they ought to have been underproping

Negation

Simple form	V-ing form
I oughtn't to underprop you oughtn't to underprop he oughtn't to underprop we oughtn't to underprop you oughtn't to underprop they oughtn't to underprop	I oughtn't to be underproping you oughtn't to be underproping he oughtn't to be underproping we oughtn't to be underproping you oughtn't to be underproping they oughtn't to be underproping
Perfect	V-ing perfect
I oughtn't to have underproped you oughtn't to have underproped he oughtn't to have underproped we oughtn't to have underproped you oughtn't to have underproped they oughtn't to have underproped	I oughtn't to have been underproping you oughtn't to have been underproping he oughtn't to have been underproping we oughtn't to have been underproping you oughtn't to have been underproping they oughtn't to have been underproping

Interrogative form

Simple form	V-ing form
ought to I underprop? ought to you underprop? ought to he underprop? ought to we underprop? ought to you underprop? ought to they underprop?	ought to I be underproping? ought to you be underproping? ought to he be underproping? ought to we be underproping? ought to you be underproping? ought to they be underproping?
Perfect	V-ing perfect
ought to I have underproped? ought to you have underproped? ought to he have underproped? ought to we have underproped? ought to you have underproped? ought to they have underproped?	ought to I have been underproping? ought to you have been underproping? ought to he have been underproping? ought to we have been underproping? ought to you have been underproping? ought to they have been underproping?

Interro-negative form

Simple form	V-ing form
oughtn't I to underprop? oughtn't you to underprop? oughtn't he to underprop? oughtn't we to underprop? oughtn't you to underprop? oughtn't they to underprop?	oughtn't I to be underproping? oughtn't you to be underproping? oughtn't he to be underproping? oughtn't we to be underproping? oughtn't you to be underproping? oughtn't they to be underproping?
Perfect	V-ing perfect
oughtn't I to have underproped? oughtn't you to have underproped? oughtn't he to have underproped? oughtn't we to have underproped? oughtn't you to have underproped? oughtn't they to have underproped?	oughtn't I to have been underproping? oughtn't you to have been underproping? oughtn't he to have been underproping? oughtn't we to have been underproping? oughtn't you to have been underproping? oughtn't they to have been underproping?