must scab
Verbe régulier : scab - scabbed- scabbed
Traduction française : former une croûte (UK) - fam briser une grève 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must scab
you must scab
he must scab
we must scab
you must scab
they must scab 	I must be scabbing
you must be scabbing
he must be scabbing
we must be scabbing
you must be scabbing
they must be scabbing	I must have scabbed
you must have scabbed
he must have scabbed
we must have scabbed
you must have scabbed
they must have scabbed	I must have been scabbing
you must have been scabbing
he must have been scabbing
we must have been scabbing
you must have been scabbing
they must have been scabbing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't scab
you mustn't scab
he mustn't scab
we mustn't scab
you mustn't scab
they mustn't scab 	I mustn't be scabbing
you mustn't be scabbing
he mustn't be scabbing
we mustn't be scabbing
you mustn't be scabbing
they mustn't be scabbing	I mustn't have scabbed
you mustn't have scabbed
he mustn't have scabbed
we mustn't have scabbed
you mustn't have scabbed
they mustn't have scabbed	I mustn't have been scabbing
you mustn't have been scabbing
he mustn't have been scabbing
we mustn't have been scabbing
you mustn't have been scabbing
they mustn't have been scabbing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I scab?
must you scab?
must he scab?
must we scab?
must you scab?
must they scab? 	must I be scabbing?
must you be scabbing?
must he be scabbing?
must we be scabbing?
must you be scabbing?
must they be scabbing? 	must I have scabbed?
must you have scabbed?
must he have scabbed?
must we have scabbed?
must you have scabbed?
must they have scabbed? 	must I have been scabbing?
must you have been scabbing?
must he have been scabbing?
must we have been scabbing?
must you have been scabbing?
must they have been scabbing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I scab?
mustn't you scab?
mustn't he scab?
mustn't we scab?
mustn't you scab?
mustn't they scab? 	mustn't I be scabbing?
mustn't you be scabbing?
mustn't he be scabbing?
mustn't we be scabbing?
mustn't you be scabbing?
mustn't they be scabbing? 	mustn't I have scabbed?
mustn't you have scabbed?
mustn't he have scabbed?
mustn't we have scabbed?
mustn't you have scabbed?
mustn't they have scabbed? 	mustn't I have been scabbing?
mustn't you have been scabbing?
mustn't he have been scabbing?
mustn't we have been scabbing?
mustn't you have been scabbing?
mustn't they have been scabbing?