ought to decaffeinate
Regular verb: decaffeinate - decaffeinated- decaffeinated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to decaffeinate
you ought to decaffeinate
he ought to decaffeinate
we ought to decaffeinate
you ought to decaffeinate
they ought to decaffeinate 	I ought to be decaffeinating
you ought to be decaffeinating
he ought to be decaffeinating
we ought to be decaffeinating
you ought to be decaffeinating
they ought to be decaffeinating	I ought to have decaffeinated
you ought to have decaffeinated
he ought to have decaffeinated
we ought to have decaffeinated
you ought to have decaffeinated
they ought to have decaffeinated	I ought to have been decaffeinating
you ought to have been decaffeinating
he ought to have been decaffeinating
we ought to have been decaffeinating
you ought to have been decaffeinating
they ought to have been decaffeinating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to decaffeinate
you oughtn't to decaffeinate
he oughtn't to decaffeinate
we oughtn't to decaffeinate
you oughtn't to decaffeinate
they oughtn't to decaffeinate 	I oughtn't to be decaffeinating
you oughtn't to be decaffeinating
he oughtn't to be decaffeinating
we oughtn't to be decaffeinating
you oughtn't to be decaffeinating
they oughtn't to be decaffeinating	I oughtn't to have decaffeinated
you oughtn't to have decaffeinated
he oughtn't to have decaffeinated
we oughtn't to have decaffeinated
you oughtn't to have decaffeinated
they oughtn't to have decaffeinated	I oughtn't to have been decaffeinating
you oughtn't to have been decaffeinating
he oughtn't to have been decaffeinating
we oughtn't to have been decaffeinating
you oughtn't to have been decaffeinating
they oughtn't to have been decaffeinating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I decaffeinate?
ought to you decaffeinate?
ought to he decaffeinate?
ought to we decaffeinate?
ought to you decaffeinate?
ought to they decaffeinate? 	ought to I be decaffeinating?
ought to you be decaffeinating?
ought to he be decaffeinating?
ought to we be decaffeinating?
ought to you be decaffeinating?
ought to they be decaffeinating? 	ought to I have decaffeinated?
ought to you have decaffeinated?
ought to he have decaffeinated?
ought to we have decaffeinated?
ought to you have decaffeinated?
ought to they have decaffeinated? 	ought to I have been decaffeinating?
ought to you have been decaffeinating?
ought to he have been decaffeinating?
ought to we have been decaffeinating?
ought to you have been decaffeinating?
ought to they have been decaffeinating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to decaffeinate?
oughtn't you to decaffeinate?
oughtn't he to decaffeinate?
oughtn't we to decaffeinate?
oughtn't you to decaffeinate?
oughtn't they to decaffeinate? 	oughtn't I to be decaffeinating?
oughtn't you to be decaffeinating?
oughtn't he to be decaffeinating?
oughtn't we to be decaffeinating?
oughtn't you to be decaffeinating?
oughtn't they to be decaffeinating? 	oughtn't I to have decaffeinated?
oughtn't you to have decaffeinated?
oughtn't he to have decaffeinated?
oughtn't we to have decaffeinated?
oughtn't you to have decaffeinated?
oughtn't they to have decaffeinated? 	oughtn't I to have been decaffeinating?
oughtn't you to have been decaffeinating?
oughtn't he to have been decaffeinating?
oughtn't we to have been decaffeinating?
oughtn't you to have been decaffeinating?
oughtn't they to have been decaffeinating?