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
she 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
she 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
she 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
she 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
she 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
she 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
she 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
she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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?