ought to discolor
Regular verb: discolor - discolored- discolored

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to discolor
you ought to discolor
she ought to discolor
we ought to discolor
you ought to discolor
they ought to discolor 	I ought to be discoloring
you ought to be discoloring
she ought to be discoloring
we ought to be discoloring
you ought to be discoloring
they ought to be discoloring	I ought to have discolored
you ought to have discolored
she ought to have discolored
we ought to have discolored
you ought to have discolored
they ought to have discolored	I ought to have been discoloring
you ought to have been discoloring
she ought to have been discoloring
we ought to have been discoloring
you ought to have been discoloring
they ought to have been discoloring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to discolor
you oughtn't to discolor
she oughtn't to discolor
we oughtn't to discolor
you oughtn't to discolor
they oughtn't to discolor 	I oughtn't to be discoloring
you oughtn't to be discoloring
she oughtn't to be discoloring
we oughtn't to be discoloring
you oughtn't to be discoloring
they oughtn't to be discoloring	I oughtn't to have discolored
you oughtn't to have discolored
she oughtn't to have discolored
we oughtn't to have discolored
you oughtn't to have discolored
they oughtn't to have discolored	I oughtn't to have been discoloring
you oughtn't to have been discoloring
she oughtn't to have been discoloring
we oughtn't to have been discoloring
you oughtn't to have been discoloring
they oughtn't to have been discoloring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I discolor?
ought to you discolor?
ought to she discolor?
ought to we discolor?
ought to you discolor?
ought to they discolor? 	ought to I be discoloring?
ought to you be discoloring?
ought to she be discoloring?
ought to we be discoloring?
ought to you be discoloring?
ought to they be discoloring? 	ought to I have discolored?
ought to you have discolored?
ought to she have discolored?
ought to we have discolored?
ought to you have discolored?
ought to they have discolored? 	ought to I have been discoloring?
ought to you have been discoloring?
ought to she have been discoloring?
ought to we have been discoloring?
ought to you have been discoloring?
ought to they have been discoloring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to discolor?
oughtn't you to discolor?
oughtn't she to discolor?
oughtn't we to discolor?
oughtn't you to discolor?
oughtn't they to discolor? 	oughtn't I to be discoloring?
oughtn't you to be discoloring?
oughtn't she to be discoloring?
oughtn't we to be discoloring?
oughtn't you to be discoloring?
oughtn't they to be discoloring? 	oughtn't I to have discolored?
oughtn't you to have discolored?
oughtn't she to have discolored?
oughtn't we to have discolored?
oughtn't you to have discolored?
oughtn't they to have discolored? 	oughtn't I to have been discoloring?
oughtn't you to have been discoloring?
oughtn't she to have been discoloring?
oughtn't we to have been discoloring?
oughtn't you to have been discoloring?
oughtn't they to have been discoloring?