must crusade
Verbe régulier : crusade - crusaded- crusaded
Traduction française : partir en croisade - faire une croisade 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must crusade
you must crusade
he must crusade
we must crusade
you must crusade
they must crusade 	I must be crusading
you must be crusading
he must be crusading
we must be crusading
you must be crusading
they must be crusading	I must have crusaded
you must have crusaded
he must have crusaded
we must have crusaded
you must have crusaded
they must have crusaded	I must have been crusading
you must have been crusading
he must have been crusading
we must have been crusading
you must have been crusading
they must have been crusading	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not crusade
you must not crusade
he must not crusade
we must not crusade
you must not crusade
they must not crusade 	I must not be crusading
you must not be crusading
he must not be crusading
we must not be crusading
you must not be crusading
they must not be crusading	I must not have crusaded
you must not have crusaded
he must not have crusaded
we must not have crusaded
you must not have crusaded
they must not have crusaded	I must not have been crusading
you must not have been crusading
he must not have been crusading
we must not have been crusading
you must not have been crusading
they must not have been crusading	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I crusade?
must you crusade?
must he crusade?
must we crusade?
must you crusade?
must they crusade? 	must I be crusading?
must you be crusading?
must he be crusading?
must we be crusading?
must you be crusading?
must they be crusading? 	must I have crusaded?
must you have crusaded?
must he have crusaded?
must we have crusaded?
must you have crusaded?
must they have crusaded? 	must I have been crusading?
must you have been crusading?
must he have been crusading?
must we have been crusading?
must you have been crusading?
must they have been crusading? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not crusade?
must you not crusade?
must he not crusade?
must we not crusade?
must you not crusade?
must they not crusade? 	must I not be crusading?
must you not be crusading?
must he not be crusading?
must we not be crusading?
must you not be crusading?
must they not be crusading? 	must I not have crusaded?
must you not have crusaded?
must he not have crusaded?
must we not have crusaded?
must you not have crusaded?
must they not have crusaded? 	must I not have been crusading?
must you not have been crusading?
must he not have been crusading?
must we not have been crusading?
must you not have been crusading?
must they not have been crusading?