must exsert
Verbe régulier : exsert - exserted- exserted

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must exsert
you must exsert
she must exsert
we must exsert
you must exsert
they must exsert 	I must be exserting
you must be exserting
she must be exserting
we must be exserting
you must be exserting
they must be exserting	I must have exserted
you must have exserted
she must have exserted
we must have exserted
you must have exserted
they must have exserted	I must have been exserting
you must have been exserting
she must have been exserting
we must have been exserting
you must have been exserting
they must have been exserting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't exsert
you mustn't exsert
she mustn't exsert
we mustn't exsert
you mustn't exsert
they mustn't exsert 	I mustn't be exserting
you mustn't be exserting
she mustn't be exserting
we mustn't be exserting
you mustn't be exserting
they mustn't be exserting	I mustn't have exserted
you mustn't have exserted
she mustn't have exserted
we mustn't have exserted
you mustn't have exserted
they mustn't have exserted	I mustn't have been exserting
you mustn't have been exserting
she mustn't have been exserting
we mustn't have been exserting
you mustn't have been exserting
they mustn't have been exserting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I exsert?
must you exsert?
must she exsert?
must we exsert?
must you exsert?
must they exsert? 	must I be exserting?
must you be exserting?
must she be exserting?
must we be exserting?
must you be exserting?
must they be exserting? 	must I have exserted?
must you have exserted?
must she have exserted?
must we have exserted?
must you have exserted?
must they have exserted? 	must I have been exserting?
must you have been exserting?
must she have been exserting?
must we have been exserting?
must you have been exserting?
must they have been exserting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I exsert?
mustn't you exsert?
mustn't she exsert?
mustn't we exsert?
mustn't you exsert?
mustn't they exsert? 	mustn't I be exserting?
mustn't you be exserting?
mustn't she be exserting?
mustn't we be exserting?
mustn't you be exserting?
mustn't they be exserting? 	mustn't I have exserted?
mustn't you have exserted?
mustn't she have exserted?
mustn't we have exserted?
mustn't you have exserted?
mustn't they have exserted? 	mustn't I have been exserting?
mustn't you have been exserting?
mustn't she have been exserting?
mustn't we have been exserting?
mustn't you have been exserting?
mustn't they have been exserting?