must sirup
Verbe régulier : sirup - siruped- siruped

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must sirup
you must sirup
he must sirup
we must sirup
you must sirup
they must sirup 	I must be siruping
you must be siruping
he must be siruping
we must be siruping
you must be siruping
they must be siruping	I must have siruped
you must have siruped
he must have siruped
we must have siruped
you must have siruped
they must have siruped	I must have been siruping
you must have been siruping
he must have been siruping
we must have been siruping
you must have been siruping
they must have been siruping	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not sirup
you must not sirup
he must not sirup
we must not sirup
you must not sirup
they must not sirup 	I must not be siruping
you must not be siruping
he must not be siruping
we must not be siruping
you must not be siruping
they must not be siruping	I must not have siruped
you must not have siruped
he must not have siruped
we must not have siruped
you must not have siruped
they must not have siruped	I must not have been siruping
you must not have been siruping
he must not have been siruping
we must not have been siruping
you must not have been siruping
they must not have been siruping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I sirup?
must you sirup?
must he sirup?
must we sirup?
must you sirup?
must they sirup? 	must I be siruping?
must you be siruping?
must he be siruping?
must we be siruping?
must you be siruping?
must they be siruping? 	must I have siruped?
must you have siruped?
must he have siruped?
must we have siruped?
must you have siruped?
must they have siruped? 	must I have been siruping?
must you have been siruping?
must he have been siruping?
must we have been siruping?
must you have been siruping?
must they have been siruping? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not sirup?
must you not sirup?
must he not sirup?
must we not sirup?
must you not sirup?
must they not sirup? 	must I not be siruping?
must you not be siruping?
must he not be siruping?
must we not be siruping?
must you not be siruping?
must they not be siruping? 	must I not have siruped?
must you not have siruped?
must he not have siruped?
must we not have siruped?
must you not have siruped?
must they not have siruped? 	must I not have been siruping?
must you not have been siruping?
must he not have been siruping?
must we not have been siruping?
must you not have been siruping?
must they not have been siruping?