must preformulate
Verbe régulier : preformulate - preformulated- preformulated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must preformulate
you must preformulate
she must preformulate
we must preformulate
you must preformulate
they must preformulate 	I must be preformulating
you must be preformulating
she must be preformulating
we must be preformulating
you must be preformulating
they must be preformulating	I must have preformulated
you must have preformulated
she must have preformulated
we must have preformulated
you must have preformulated
they must have preformulated	I must have been preformulating
you must have been preformulating
she must have been preformulating
we must have been preformulating
you must have been preformulating
they must have been preformulating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't preformulate
you mustn't preformulate
she mustn't preformulate
we mustn't preformulate
you mustn't preformulate
they mustn't preformulate 	I mustn't be preformulating
you mustn't be preformulating
she mustn't be preformulating
we mustn't be preformulating
you mustn't be preformulating
they mustn't be preformulating	I mustn't have preformulated
you mustn't have preformulated
she mustn't have preformulated
we mustn't have preformulated
you mustn't have preformulated
they mustn't have preformulated	I mustn't have been preformulating
you mustn't have been preformulating
she mustn't have been preformulating
we mustn't have been preformulating
you mustn't have been preformulating
they mustn't have been preformulating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I preformulate?
must you preformulate?
must she preformulate?
must we preformulate?
must you preformulate?
must they preformulate? 	must I be preformulating?
must you be preformulating?
must she be preformulating?
must we be preformulating?
must you be preformulating?
must they be preformulating? 	must I have preformulated?
must you have preformulated?
must she have preformulated?
must we have preformulated?
must you have preformulated?
must they have preformulated? 	must I have been preformulating?
must you have been preformulating?
must she have been preformulating?
must we have been preformulating?
must you have been preformulating?
must they have been preformulating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I preformulate?
mustn't you preformulate?
mustn't she preformulate?
mustn't we preformulate?
mustn't you preformulate?
mustn't they preformulate? 	mustn't I be preformulating?
mustn't you be preformulating?
mustn't she be preformulating?
mustn't we be preformulating?
mustn't you be preformulating?
mustn't they be preformulating? 	mustn't I have preformulated?
mustn't you have preformulated?
mustn't she have preformulated?
mustn't we have preformulated?
mustn't you have preformulated?
mustn't they have preformulated? 	mustn't I have been preformulating?
mustn't you have been preformulating?
mustn't she have been preformulating?
mustn't we have been preformulating?
mustn't you have been preformulating?
mustn't they have been preformulating?