must saber
Verbe régulier : saber - sabered- sabered

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must saber
you must saber
she must saber
we must saber
you must saber
they must saber 	I must be sabering
you must be sabering
she must be sabering
we must be sabering
you must be sabering
they must be sabering	I must have sabered
you must have sabered
she must have sabered
we must have sabered
you must have sabered
they must have sabered	I must have been sabering
you must have been sabering
she must have been sabering
we must have been sabering
you must have been sabering
they must have been sabering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't saber
you mustn't saber
she mustn't saber
we mustn't saber
you mustn't saber
they mustn't saber 	I mustn't be sabering
you mustn't be sabering
she mustn't be sabering
we mustn't be sabering
you mustn't be sabering
they mustn't be sabering	I mustn't have sabered
you mustn't have sabered
she mustn't have sabered
we mustn't have sabered
you mustn't have sabered
they mustn't have sabered	I mustn't have been sabering
you mustn't have been sabering
she mustn't have been sabering
we mustn't have been sabering
you mustn't have been sabering
they mustn't have been sabering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I saber?
must you saber?
must she saber?
must we saber?
must you saber?
must they saber? 	must I be sabering?
must you be sabering?
must she be sabering?
must we be sabering?
must you be sabering?
must they be sabering? 	must I have sabered?
must you have sabered?
must she have sabered?
must we have sabered?
must you have sabered?
must they have sabered? 	must I have been sabering?
must you have been sabering?
must she have been sabering?
must we have been sabering?
must you have been sabering?
must they have been sabering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I saber?
mustn't you saber?
mustn't she saber?
mustn't we saber?
mustn't you saber?
mustn't they saber? 	mustn't I be sabering?
mustn't you be sabering?
mustn't she be sabering?
mustn't we be sabering?
mustn't you be sabering?
mustn't they be sabering? 	mustn't I have sabered?
mustn't you have sabered?
mustn't she have sabered?
mustn't we have sabered?
mustn't you have sabered?
mustn't they have sabered? 	mustn't I have been sabering?
mustn't you have been sabering?
mustn't she have been sabering?
mustn't we have been sabering?
mustn't you have been sabering?
mustn't they have been sabering?