must stipulate
Verbo regular: stipulate - stipulated- stipulated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not stipulate
you must not stipulate
he 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
he 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
he 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
he must not have been stipulating
we must not have been stipulating
you must not have been stipulating
they must not have been stipulating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not stipulate?
must you not stipulate?
must he 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 he 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 he 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 he not have been stipulating?
must we not have been stipulating?
must you not have been stipulating?
must they not have been stipulating?