ought to concern
Regular verb: concern - concerned- concerned

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