ought to stipulate
Regular verb: stipulate - stipulated- stipulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to stipulate
you ought to stipulate
he ought to stipulate
we ought to stipulate
you ought to stipulate
they ought to stipulate 	I ought to be stipulating
you ought to be stipulating
he ought to be stipulating
we ought to be stipulating
you ought to be stipulating
they ought to be stipulating	I ought to have stipulated
you ought to have stipulated
he ought to have stipulated
we ought to have stipulated
you ought to have stipulated
they ought to have stipulated	I ought to have been stipulating
you ought to have been stipulating
he ought to have been stipulating
we ought to have been stipulating
you ought to have been stipulating
they ought to have been stipulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to stipulate
you oughtn't to stipulate
he oughtn't to stipulate
we oughtn't to stipulate
you oughtn't to stipulate
they oughtn't to stipulate 	I oughtn't to be stipulating
you oughtn't to be stipulating
he oughtn't to be stipulating
we oughtn't to be stipulating
you oughtn't to be stipulating
they oughtn't to be stipulating	I oughtn't to have stipulated
you oughtn't to have stipulated
he oughtn't to have stipulated
we oughtn't to have stipulated
you oughtn't to have stipulated
they oughtn't to have stipulated	I oughtn't to have been stipulating
you oughtn't to have been stipulating
he oughtn't to have been stipulating
we oughtn't to have been stipulating
you oughtn't to have been stipulating
they oughtn't to have been stipulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I stipulate?
ought to you stipulate?
ought to he stipulate?
ought to we stipulate?
ought to you stipulate?
ought to they stipulate? 	ought to I be stipulating?
ought to you be stipulating?
ought to he be stipulating?
ought to we be stipulating?
ought to you be stipulating?
ought to they be stipulating? 	ought to I have stipulated?
ought to you have stipulated?
ought to he have stipulated?
ought to we have stipulated?
ought to you have stipulated?
ought to they have stipulated? 	ought to I have been stipulating?
ought to you have been stipulating?
ought to he have been stipulating?
ought to we have been stipulating?
ought to you have been stipulating?
ought to they have been stipulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to stipulate?
oughtn't you to stipulate?
oughtn't he to stipulate?
oughtn't we to stipulate?
oughtn't you to stipulate?
oughtn't they to stipulate? 	oughtn't I to be stipulating?
oughtn't you to be stipulating?
oughtn't he to be stipulating?
oughtn't we to be stipulating?
oughtn't you to be stipulating?
oughtn't they to be stipulating? 	oughtn't I to have stipulated?
oughtn't you to have stipulated?
oughtn't he to have stipulated?
oughtn't we to have stipulated?
oughtn't you to have stipulated?
oughtn't they to have stipulated? 	oughtn't I to have been stipulating?
oughtn't you to have been stipulating?
oughtn't he to have been stipulating?
oughtn't we to have been stipulating?
oughtn't you to have been stipulating?
oughtn't they to have been stipulating?