must preregulate
Verbe régulier : preregulate - preregulated- preregulated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must preregulate
you must preregulate
he must preregulate
we must preregulate
you must preregulate
they must preregulate 	I must be preregulating
you must be preregulating
he must be preregulating
we must be preregulating
you must be preregulating
they must be preregulating	I must have preregulated
you must have preregulated
he must have preregulated
we must have preregulated
you must have preregulated
they must have preregulated	I must have been preregulating
you must have been preregulating
he must have been preregulating
we must have been preregulating
you must have been preregulating
they must have been preregulating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't preregulate
you mustn't preregulate
he mustn't preregulate
we mustn't preregulate
you mustn't preregulate
they mustn't preregulate 	I mustn't be preregulating
you mustn't be preregulating
he mustn't be preregulating
we mustn't be preregulating
you mustn't be preregulating
they mustn't be preregulating	I mustn't have preregulated
you mustn't have preregulated
he mustn't have preregulated
we mustn't have preregulated
you mustn't have preregulated
they mustn't have preregulated	I mustn't have been preregulating
you mustn't have been preregulating
he mustn't have been preregulating
we mustn't have been preregulating
you mustn't have been preregulating
they mustn't have been preregulating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I preregulate?
must you preregulate?
must he preregulate?
must we preregulate?
must you preregulate?
must they preregulate? 	must I be preregulating?
must you be preregulating?
must he be preregulating?
must we be preregulating?
must you be preregulating?
must they be preregulating? 	must I have preregulated?
must you have preregulated?
must he have preregulated?
must we have preregulated?
must you have preregulated?
must they have preregulated? 	must I have been preregulating?
must you have been preregulating?
must he have been preregulating?
must we have been preregulating?
must you have been preregulating?
must they have been preregulating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I preregulate?
mustn't you preregulate?
mustn't he preregulate?
mustn't we preregulate?
mustn't you preregulate?
mustn't they preregulate? 	mustn't I be preregulating?
mustn't you be preregulating?
mustn't he be preregulating?
mustn't we be preregulating?
mustn't you be preregulating?
mustn't they be preregulating? 	mustn't I have preregulated?
mustn't you have preregulated?
mustn't he have preregulated?
mustn't we have preregulated?
mustn't you have preregulated?
mustn't they have preregulated? 	mustn't I have been preregulating?
mustn't you have been preregulating?
mustn't he have been preregulating?
mustn't we have been preregulating?
mustn't you have been preregulating?
mustn't they have been preregulating?