must staff
Verbe régulier : staff - staffed- staffed
Traduction française : pourvoir en personnel 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must staff
you must staff
she must staff
we must staff
you must staff
they must staff 	I must be staffing
you must be staffing
she must be staffing
we must be staffing
you must be staffing
they must be staffing	I must have staffed
you must have staffed
she must have staffed
we must have staffed
you must have staffed
they must have staffed	I must have been staffing
you must have been staffing
she must have been staffing
we must have been staffing
you must have been staffing
they must have been staffing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not staff
you must not staff
she must not staff
we must not staff
you must not staff
they must not staff 	I must not be staffing
you must not be staffing
she must not be staffing
we must not be staffing
you must not be staffing
they must not be staffing	I must not have staffed
you must not have staffed
she must not have staffed
we must not have staffed
you must not have staffed
they must not have staffed	I must not have been staffing
you must not have been staffing
she must not have been staffing
we must not have been staffing
you must not have been staffing
they must not have been staffing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I staff?
must you staff?
must she staff?
must we staff?
must you staff?
must they staff? 	must I be staffing?
must you be staffing?
must she be staffing?
must we be staffing?
must you be staffing?
must they be staffing? 	must I have staffed?
must you have staffed?
must she have staffed?
must we have staffed?
must you have staffed?
must they have staffed? 	must I have been staffing?
must you have been staffing?
must she have been staffing?
must we have been staffing?
must you have been staffing?
must they have been staffing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not staff?
must you not staff?
must she not staff?
must we not staff?
must you not staff?
must they not staff? 	must I not be staffing?
must you not be staffing?
must she not be staffing?
must we not be staffing?
must you not be staffing?
must they not be staffing? 	must I not have staffed?
must you not have staffed?
must she not have staffed?
must we not have staffed?
must you not have staffed?
must they not have staffed? 	must I not have been staffing?
must you not have been staffing?
must she not have been staffing?
must we not have been staffing?
must you not have been staffing?
must they not have been staffing?