must stool
Verbe régulier : stool - stooled- stooled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must stool
you must stool
he must stool
we must stool
you must stool
they must stool 	I must be stooling
you must be stooling
he must be stooling
we must be stooling
you must be stooling
they must be stooling	I must have stooled
you must have stooled
he must have stooled
we must have stooled
you must have stooled
they must have stooled	I must have been stooling
you must have been stooling
he must have been stooling
we must have been stooling
you must have been stooling
they must have been stooling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not stool
you must not stool
he must not stool
we must not stool
you must not stool
they must not stool 	I must not be stooling
you must not be stooling
he must not be stooling
we must not be stooling
you must not be stooling
they must not be stooling	I must not have stooled
you must not have stooled
he must not have stooled
we must not have stooled
you must not have stooled
they must not have stooled	I must not have been stooling
you must not have been stooling
he must not have been stooling
we must not have been stooling
you must not have been stooling
they must not have been stooling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I stool?
must you stool?
must he stool?
must we stool?
must you stool?
must they stool? 	must I be stooling?
must you be stooling?
must he be stooling?
must we be stooling?
must you be stooling?
must they be stooling? 	must I have stooled?
must you have stooled?
must he have stooled?
must we have stooled?
must you have stooled?
must they have stooled? 	must I have been stooling?
must you have been stooling?
must he have been stooling?
must we have been stooling?
must you have been stooling?
must they have been stooling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not stool?
must you not stool?
must he not stool?
must we not stool?
must you not stool?
must they not stool? 	must I not be stooling?
must you not be stooling?
must he not be stooling?
must we not be stooling?
must you not be stooling?
must they not be stooling? 	must I not have stooled?
must you not have stooled?
must he not have stooled?
must we not have stooled?
must you not have stooled?
must they not have stooled? 	must I not have been stooling?
must you not have been stooling?
must he not have been stooling?
must we not have been stooling?
must you not have been stooling?
must they not have been stooling?