must stipulate
Regular verb: stipulate - stipulated- stipulated

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

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

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

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