must sliver
Verbe régulier : sliver - slivered- slivered

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must sliver
you must sliver
he must sliver
we must sliver
you must sliver
they must sliver 	I must be slivering
you must be slivering
he must be slivering
we must be slivering
you must be slivering
they must be slivering	I must have slivered
you must have slivered
he must have slivered
we must have slivered
you must have slivered
they must have slivered	I must have been slivering
you must have been slivering
he must have been slivering
we must have been slivering
you must have been slivering
they must have been slivering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't sliver
you mustn't sliver
he mustn't sliver
we mustn't sliver
you mustn't sliver
they mustn't sliver 	I mustn't be slivering
you mustn't be slivering
he mustn't be slivering
we mustn't be slivering
you mustn't be slivering
they mustn't be slivering	I mustn't have slivered
you mustn't have slivered
he mustn't have slivered
we mustn't have slivered
you mustn't have slivered
they mustn't have slivered	I mustn't have been slivering
you mustn't have been slivering
he mustn't have been slivering
we mustn't have been slivering
you mustn't have been slivering
they mustn't have been slivering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I sliver?
must you sliver?
must he sliver?
must we sliver?
must you sliver?
must they sliver? 	must I be slivering?
must you be slivering?
must he be slivering?
must we be slivering?
must you be slivering?
must they be slivering? 	must I have slivered?
must you have slivered?
must he have slivered?
must we have slivered?
must you have slivered?
must they have slivered? 	must I have been slivering?
must you have been slivering?
must he have been slivering?
must we have been slivering?
must you have been slivering?
must they have been slivering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I sliver?
mustn't you sliver?
mustn't he sliver?
mustn't we sliver?
mustn't you sliver?
mustn't they sliver? 	mustn't I be slivering?
mustn't you be slivering?
mustn't he be slivering?
mustn't we be slivering?
mustn't you be slivering?
mustn't they be slivering? 	mustn't I have slivered?
mustn't you have slivered?
mustn't he have slivered?
mustn't we have slivered?
mustn't you have slivered?
mustn't they have slivered? 	mustn't I have been slivering?
mustn't you have been slivering?
mustn't he have been slivering?
mustn't we have been slivering?
mustn't you have been slivering?
mustn't they have been slivering?