English verb conjugation
OUGHT TO CONCERN

Regular verb: concern - concerned - concerned

Affirmation

Simple form	V-ing form
I ought to concern you ought to concern he ought to concern we ought to concern you ought to concern they ought to concern	I ought to be concerning you ought to be concerning he ought to be concerning we ought to be concerning you ought to be concerning they ought to be concerning
Perfect	V-ing perfect
I ought to have concerned you ought to have concerned he ought to have concerned we ought to have concerned you ought to have concerned they ought to have concerned	I ought to have been concerning you ought to have been concerning he ought to have been concerning we ought to have been concerning you ought to have been concerning they ought to have been concerning

Negation

Simple form	V-ing form
I oughtn't to concern you oughtn't to concern he oughtn't to concern we oughtn't to concern you oughtn't to concern they oughtn't to concern	I oughtn't to be concerning you oughtn't to be concerning he oughtn't to be concerning we oughtn't to be concerning you oughtn't to be concerning they oughtn't to be concerning
Perfect	V-ing perfect
I oughtn't to have concerned you oughtn't to have concerned he oughtn't to have concerned we oughtn't to have concerned you oughtn't to have concerned they oughtn't to have concerned	I oughtn't to have been concerning you oughtn't to have been concerning he oughtn't to have been concerning we oughtn't to have been concerning you oughtn't to have been concerning they oughtn't to have been concerning

Interrogative form

Simple form	V-ing form
ought to I concern? ought to you concern? ought to he concern? ought to we concern? ought to you concern? ought to they concern?	ought to I be concerning? ought to you be concerning? ought to he be concerning? ought to we be concerning? ought to you be concerning? ought to they be concerning?
Perfect	V-ing perfect
ought to I have concerned? ought to you have concerned? ought to he have concerned? ought to we have concerned? ought to you have concerned? ought to they have concerned?	ought to I have been concerning? ought to you have been concerning? ought to he have been concerning? ought to we have been concerning? ought to you have been concerning? ought to they have been concerning?

Interro-negative form

Simple form	V-ing form
oughtn't I to concern? oughtn't you to concern? oughtn't he to concern? oughtn't we to concern? oughtn't you to concern? oughtn't they to concern?	oughtn't I to be concerning? oughtn't you to be concerning? oughtn't he to be concerning? oughtn't we to be concerning? oughtn't you to be concerning? oughtn't they to be concerning?
Perfect	V-ing perfect
oughtn't I to have concerned? oughtn't you to have concerned? oughtn't he to have concerned? oughtn't we to have concerned? oughtn't you to have concerned? oughtn't they to have concerned?	oughtn't I to have been concerning? oughtn't you to have been concerning? oughtn't he to have been concerning? oughtn't we to have been concerning? oughtn't you to have been concerning? oughtn't they to have been concerning?