English verb conjugation
OUGHT TO SICKEN

Regular verb: sicken - sickened - sickened

Affirmation

Simple form	V-ing form
I ought to sicken you ought to sicken he ought to sicken we ought to sicken you ought to sicken they ought to sicken	I ought to be sickening you ought to be sickening he ought to be sickening we ought to be sickening you ought to be sickening they ought to be sickening
Perfect	V-ing perfect
I ought to have sickened you ought to have sickened he ought to have sickened we ought to have sickened you ought to have sickened they ought to have sickened	I ought to have been sickening you ought to have been sickening he ought to have been sickening we ought to have been sickening you ought to have been sickening they ought to have been sickening

Negation

Simple form	V-ing form
I oughtn't to sicken you oughtn't to sicken he oughtn't to sicken we oughtn't to sicken you oughtn't to sicken they oughtn't to sicken	I oughtn't to be sickening you oughtn't to be sickening he oughtn't to be sickening we oughtn't to be sickening you oughtn't to be sickening they oughtn't to be sickening
Perfect	V-ing perfect
I oughtn't to have sickened you oughtn't to have sickened he oughtn't to have sickened we oughtn't to have sickened you oughtn't to have sickened they oughtn't to have sickened	I oughtn't to have been sickening you oughtn't to have been sickening he oughtn't to have been sickening we oughtn't to have been sickening you oughtn't to have been sickening they oughtn't to have been sickening

Interrogative form

Simple form	V-ing form
ought to I sicken? ought to you sicken? ought to he sicken? ought to we sicken? ought to you sicken? ought to they sicken?	ought to I be sickening? ought to you be sickening? ought to he be sickening? ought to we be sickening? ought to you be sickening? ought to they be sickening?
Perfect	V-ing perfect
ought to I have sickened? ought to you have sickened? ought to he have sickened? ought to we have sickened? ought to you have sickened? ought to they have sickened?	ought to I have been sickening? ought to you have been sickening? ought to he have been sickening? ought to we have been sickening? ought to you have been sickening? ought to they have been sickening?

Interro-negative form

Simple form	V-ing form
oughtn't I to sicken? oughtn't you to sicken? oughtn't he to sicken? oughtn't we to sicken? oughtn't you to sicken? oughtn't they to sicken?	oughtn't I to be sickening? oughtn't you to be sickening? oughtn't he to be sickening? oughtn't we to be sickening? oughtn't you to be sickening? oughtn't they to be sickening?
Perfect	V-ing perfect
oughtn't I to have sickened? oughtn't you to have sickened? oughtn't he to have sickened? oughtn't we to have sickened? oughtn't you to have sickened? oughtn't they to have sickened?	oughtn't I to have been sickening? oughtn't you to have been sickening? oughtn't he to have been sickening? oughtn't we to have been sickening? oughtn't you to have been sickening? oughtn't they to have been sickening?