must stipulate
Regular verb: stipulate - stipulated- stipulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must stipulate
you must stipulate
she must stipulate
we must stipulate
you must stipulate
they must stipulate 	I must be stipulating
you must be stipulating
she must be stipulating
we must be stipulating
you must be stipulating
they must be stipulating	I must have stipulated
you must have stipulated
she 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
she 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 must not stipulate
you must not stipulate
she must not stipulate
we must not stipulate
you must not stipulate
they must not stipulate 	I must not be stipulating
you must not be stipulating
she must not be stipulating
we must not be stipulating
you must not be stipulating
they must not be stipulating	I must not have stipulated
you must not have stipulated
she must not have stipulated
we must not have stipulated
you must not have stipulated
they must not have stipulated	I must not have been stipulating
you must not have been stipulating
she must not have been stipulating
we must not have been stipulating
you must not have been stipulating
they must not have been stipulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I stipulate?
must you stipulate?
must she stipulate?
must we stipulate?
must you stipulate?
must they stipulate? 	must I be stipulating?
must you be stipulating?
must she be stipulating?
must we be stipulating?
must you be stipulating?
must they be stipulating? 	must I have stipulated?
must you have stipulated?
must she 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 she 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 	
must I not stipulate?
must you not stipulate?
must she not stipulate?
must we not stipulate?
must you not stipulate?
must they not stipulate? 	must I not be stipulating?
must you not be stipulating?
must she not be stipulating?
must we not be stipulating?
must you not be stipulating?
must they not be stipulating? 	must I not have stipulated?
must you not have stipulated?
must she not have stipulated?
must we not have stipulated?
must you not have stipulated?
must they not have stipulated? 	must I not have been stipulating?
must you not have been stipulating?
must she not have been stipulating?
must we not have been stipulating?
must you not have been stipulating?
must they not have been stipulating?