must preassign
Verbe régulier : preassign - preassigned- preassigned

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must preassign
you must preassign
she must preassign
we must preassign
you must preassign
they must preassign 	I must be preassigning
you must be preassigning
she must be preassigning
we must be preassigning
you must be preassigning
they must be preassigning	I must have preassigned
you must have preassigned
she must have preassigned
we must have preassigned
you must have preassigned
they must have preassigned	I must have been preassigning
you must have been preassigning
she must have been preassigning
we must have been preassigning
you must have been preassigning
they must have been preassigning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't preassign
you mustn't preassign
she mustn't preassign
we mustn't preassign
you mustn't preassign
they mustn't preassign 	I mustn't be preassigning
you mustn't be preassigning
she mustn't be preassigning
we mustn't be preassigning
you mustn't be preassigning
they mustn't be preassigning	I mustn't have preassigned
you mustn't have preassigned
she mustn't have preassigned
we mustn't have preassigned
you mustn't have preassigned
they mustn't have preassigned	I mustn't have been preassigning
you mustn't have been preassigning
she mustn't have been preassigning
we mustn't have been preassigning
you mustn't have been preassigning
they mustn't have been preassigning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I preassign?
must you preassign?
must she preassign?
must we preassign?
must you preassign?
must they preassign? 	must I be preassigning?
must you be preassigning?
must she be preassigning?
must we be preassigning?
must you be preassigning?
must they be preassigning? 	must I have preassigned?
must you have preassigned?
must she have preassigned?
must we have preassigned?
must you have preassigned?
must they have preassigned? 	must I have been preassigning?
must you have been preassigning?
must she have been preassigning?
must we have been preassigning?
must you have been preassigning?
must they have been preassigning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I preassign?
mustn't you preassign?
mustn't she preassign?
mustn't we preassign?
mustn't you preassign?
mustn't they preassign? 	mustn't I be preassigning?
mustn't you be preassigning?
mustn't she be preassigning?
mustn't we be preassigning?
mustn't you be preassigning?
mustn't they be preassigning? 	mustn't I have preassigned?
mustn't you have preassigned?
mustn't she have preassigned?
mustn't we have preassigned?
mustn't you have preassigned?
mustn't they have preassigned? 	mustn't I have been preassigning?
mustn't you have been preassigning?
mustn't she have been preassigning?
mustn't we have been preassigning?
mustn't you have been preassigning?
mustn't they have been preassigning?