must aver
Verbe régulier : aver - averred- averred

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must aver
you must aver
he must aver
we must aver
you must aver
they must aver 	I must be averring
you must be averring
he must be averring
we must be averring
you must be averring
they must be averring	I must have averred
you must have averred
he must have averred
we must have averred
you must have averred
they must have averred	I must have been averring
you must have been averring
he must have been averring
we must have been averring
you must have been averring
they must have been averring	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't aver
you mustn't aver
he mustn't aver
we mustn't aver
you mustn't aver
they mustn't aver 	I mustn't be averring
you mustn't be averring
he mustn't be averring
we mustn't be averring
you mustn't be averring
they mustn't be averring	I mustn't have averred
you mustn't have averred
he mustn't have averred
we mustn't have averred
you mustn't have averred
they mustn't have averred	I mustn't have been averring
you mustn't have been averring
he mustn't have been averring
we mustn't have been averring
you mustn't have been averring
they mustn't have been averring	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I aver?
must you aver?
must he aver?
must we aver?
must you aver?
must they aver? 	must I be averring?
must you be averring?
must he be averring?
must we be averring?
must you be averring?
must they be averring? 	must I have averred?
must you have averred?
must he have averred?
must we have averred?
must you have averred?
must they have averred? 	must I have been averring?
must you have been averring?
must he have been averring?
must we have been averring?
must you have been averring?
must they have been averring? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I aver?
mustn't you aver?
mustn't he aver?
mustn't we aver?
mustn't you aver?
mustn't they aver? 	mustn't I be averring?
mustn't you be averring?
mustn't he be averring?
mustn't we be averring?
mustn't you be averring?
mustn't they be averring? 	mustn't I have averred?
mustn't you have averred?
mustn't he have averred?
mustn't we have averred?
mustn't you have averred?
mustn't they have averred? 	mustn't I have been averring?
mustn't you have been averring?
mustn't he have been averring?
mustn't we have been averring?
mustn't you have been averring?
mustn't they have been averring?