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
she must scab
we must scab
you must scab
they must scab 	I must be scabbing
you must be scabbing
she must be scabbing
we must be scabbing
you must be scabbing
they must be scabbing	I must have scabbed
you must have scabbed
she 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
she 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 must not scab
you must not scab
she must not scab
we must not scab
you must not scab
they must not scab 	I must not be scabbing
you must not be scabbing
she must not be scabbing
we must not be scabbing
you must not be scabbing
they must not be scabbing	I must not have scabbed
you must not have scabbed
she must not have scabbed
we must not have scabbed
you must not have scabbed
they must not have scabbed	I must not have been scabbing
you must not have been scabbing
she must not have been scabbing
we must not have been scabbing
you must not have been scabbing
they must not have been scabbing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I scab?
must you scab?
must she scab?
must we scab?
must you scab?
must they scab? 	must I be scabbing?
must you be scabbing?
must she be scabbing?
must we be scabbing?
must you be scabbing?
must they be scabbing? 	must I have scabbed?
must you have scabbed?
must she 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 she 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 	
must I not scab?
must you not scab?
must she not scab?
must we not scab?
must you not scab?
must they not scab? 	must I not be scabbing?
must you not be scabbing?
must she not be scabbing?
must we not be scabbing?
must you not be scabbing?
must they not be scabbing? 	must I not have scabbed?
must you not have scabbed?
must she not have scabbed?
must we not have scabbed?
must you not have scabbed?
must they not have scabbed? 	must I not have been scabbing?
must you not have been scabbing?
must she not have been scabbing?
must we not have been scabbing?
must you not have been scabbing?
must they not have been scabbing?