ought to black
Regular verb: black - blacked- blacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to black
you ought to black
she ought to black
we ought to black
you ought to black
they ought to black 	I ought to be blacking
you ought to be blacking
she ought to be blacking
we ought to be blacking
you ought to be blacking
they ought to be blacking	I ought to have blacked
you ought to have blacked
she ought to have blacked
we ought to have blacked
you ought to have blacked
they ought to have blacked	I ought to have been blacking
you ought to have been blacking
she ought to have been blacking
we ought to have been blacking
you ought to have been blacking
they ought to have been blacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to black
you oughtn't to black
she oughtn't to black
we oughtn't to black
you oughtn't to black
they oughtn't to black 	I oughtn't to be blacking
you oughtn't to be blacking
she oughtn't to be blacking
we oughtn't to be blacking
you oughtn't to be blacking
they oughtn't to be blacking	I oughtn't to have blacked
you oughtn't to have blacked
she oughtn't to have blacked
we oughtn't to have blacked
you oughtn't to have blacked
they oughtn't to have blacked	I oughtn't to have been blacking
you oughtn't to have been blacking
she oughtn't to have been blacking
we oughtn't to have been blacking
you oughtn't to have been blacking
they oughtn't to have been blacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I black?
ought to you black?
ought to she black?
ought to we black?
ought to you black?
ought to they black? 	ought to I be blacking?
ought to you be blacking?
ought to she be blacking?
ought to we be blacking?
ought to you be blacking?
ought to they be blacking? 	ought to I have blacked?
ought to you have blacked?
ought to she have blacked?
ought to we have blacked?
ought to you have blacked?
ought to they have blacked? 	ought to I have been blacking?
ought to you have been blacking?
ought to she have been blacking?
ought to we have been blacking?
ought to you have been blacking?
ought to they have been blacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to black?
oughtn't you to black?
oughtn't she to black?
oughtn't we to black?
oughtn't you to black?
oughtn't they to black? 	oughtn't I to be blacking?
oughtn't you to be blacking?
oughtn't she to be blacking?
oughtn't we to be blacking?
oughtn't you to be blacking?
oughtn't they to be blacking? 	oughtn't I to have blacked?
oughtn't you to have blacked?
oughtn't she to have blacked?
oughtn't we to have blacked?
oughtn't you to have blacked?
oughtn't they to have blacked? 	oughtn't I to have been blacking?
oughtn't you to have been blacking?
oughtn't she to have been blacking?
oughtn't we to have been blacking?
oughtn't you to have been blacking?
oughtn't they to have been blacking?