must rift
Verbe régulier : rift - rifted- rifted
Traduction française : scinder - se scinder 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must rift
you must rift
he must rift
we must rift
you must rift
they must rift 	I must be rifting
you must be rifting
he must be rifting
we must be rifting
you must be rifting
they must be rifting	I must have rifted
you must have rifted
he must have rifted
we must have rifted
you must have rifted
they must have rifted	I must have been rifting
you must have been rifting
he must have been rifting
we must have been rifting
you must have been rifting
they must have been rifting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't rift
you mustn't rift
he mustn't rift
we mustn't rift
you mustn't rift
they mustn't rift 	I mustn't be rifting
you mustn't be rifting
he mustn't be rifting
we mustn't be rifting
you mustn't be rifting
they mustn't be rifting	I mustn't have rifted
you mustn't have rifted
he mustn't have rifted
we mustn't have rifted
you mustn't have rifted
they mustn't have rifted	I mustn't have been rifting
you mustn't have been rifting
he mustn't have been rifting
we mustn't have been rifting
you mustn't have been rifting
they mustn't have been rifting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I rift?
must you rift?
must he rift?
must we rift?
must you rift?
must they rift? 	must I be rifting?
must you be rifting?
must he be rifting?
must we be rifting?
must you be rifting?
must they be rifting? 	must I have rifted?
must you have rifted?
must he have rifted?
must we have rifted?
must you have rifted?
must they have rifted? 	must I have been rifting?
must you have been rifting?
must he have been rifting?
must we have been rifting?
must you have been rifting?
must they have been rifting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I rift?
mustn't you rift?
mustn't he rift?
mustn't we rift?
mustn't you rift?
mustn't they rift? 	mustn't I be rifting?
mustn't you be rifting?
mustn't he be rifting?
mustn't we be rifting?
mustn't you be rifting?
mustn't they be rifting? 	mustn't I have rifted?
mustn't you have rifted?
mustn't he have rifted?
mustn't we have rifted?
mustn't you have rifted?
mustn't they have rifted? 	mustn't I have been rifting?
mustn't you have been rifting?
mustn't he have been rifting?
mustn't we have been rifting?
mustn't you have been rifting?
mustn't they have been rifting?