must crib
Verbe régulier : crib - cribbed- cribbed
Traduction française : plagier - copier 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must crib
you must crib
she must crib
we must crib
you must crib
they must crib 	I must be cribbing
you must be cribbing
she must be cribbing
we must be cribbing
you must be cribbing
they must be cribbing	I must have cribbed
you must have cribbed
she must have cribbed
we must have cribbed
you must have cribbed
they must have cribbed	I must have been cribbing
you must have been cribbing
she must have been cribbing
we must have been cribbing
you must have been cribbing
they must have been cribbing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't crib
you mustn't crib
she mustn't crib
we mustn't crib
you mustn't crib
they mustn't crib 	I mustn't be cribbing
you mustn't be cribbing
she mustn't be cribbing
we mustn't be cribbing
you mustn't be cribbing
they mustn't be cribbing	I mustn't have cribbed
you mustn't have cribbed
she mustn't have cribbed
we mustn't have cribbed
you mustn't have cribbed
they mustn't have cribbed	I mustn't have been cribbing
you mustn't have been cribbing
she mustn't have been cribbing
we mustn't have been cribbing
you mustn't have been cribbing
they mustn't have been cribbing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I crib?
must you crib?
must she crib?
must we crib?
must you crib?
must they crib? 	must I be cribbing?
must you be cribbing?
must she be cribbing?
must we be cribbing?
must you be cribbing?
must they be cribbing? 	must I have cribbed?
must you have cribbed?
must she have cribbed?
must we have cribbed?
must you have cribbed?
must they have cribbed? 	must I have been cribbing?
must you have been cribbing?
must she have been cribbing?
must we have been cribbing?
must you have been cribbing?
must they have been cribbing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I crib?
mustn't you crib?
mustn't she crib?
mustn't we crib?
mustn't you crib?
mustn't they crib? 	mustn't I be cribbing?
mustn't you be cribbing?
mustn't she be cribbing?
mustn't we be cribbing?
mustn't you be cribbing?
mustn't they be cribbing? 	mustn't I have cribbed?
mustn't you have cribbed?
mustn't she have cribbed?
mustn't we have cribbed?
mustn't you have cribbed?
mustn't they have cribbed? 	mustn't I have been cribbing?
mustn't you have been cribbing?
mustn't she have been cribbing?
mustn't we have been cribbing?
mustn't you have been cribbing?
mustn't they have been cribbing?