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 ought not to sicken you ought not to sicken he ought not to sicken we ought not to sicken you ought not to sicken they ought not to sicken	I ought not to sickening you ought not to sickening he ought not to sickening we ought not to sickening you ought not to sickening they ought not to sickening
Perfect	V-ing perfect
I ought not to have sickened you ought not to have sickened he ought not to have sickened we ought not to have sickened you ought not to have sickened they ought not to have sickened	I ought not to have been sickening you ought not to have been sickening he ought not to have been sickening we ought not to have been sickening you ought not to have been sickening they ought not 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
ought I not to sicken? ought you not to sicken? ought he not to sicken? ought we not to sicken? ought you not to sicken? ought they not to sicken?	ought I not to be sickening? ought you not to be sickening? ought he not to be sickening? ought we not to be sickening? ought you not to be sickening? ought they not to be sickening?
Perfect	V-ing perfect
ought I not to have sickened? ought you not to have sickened? ought he not to have sickened? ought we not to have sickened? ought you not to have sickened? ought they not to have sickened?	ought I not to have been sickening? ought you not to have been sickening? ought he not to have been sickening? ought we not to have been sickening? ought you not to have been sickening? ought they not to have been sickening?