must crud
Verbe régulier : crud - cruded- cruded

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must crud
you must crud
he must crud
we must crud
you must crud
they must crud 	I must be cruding
you must be cruding
he must be cruding
we must be cruding
you must be cruding
they must be cruding	I must have cruded
you must have cruded
he must have cruded
we must have cruded
you must have cruded
they must have cruded	I must have been cruding
you must have been cruding
he must have been cruding
we must have been cruding
you must have been cruding
they must have been cruding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not crud
you must not crud
he must not crud
we must not crud
you must not crud
they must not crud 	I must not be cruding
you must not be cruding
he must not be cruding
we must not be cruding
you must not be cruding
they must not be cruding	I must not have cruded
you must not have cruded
he must not have cruded
we must not have cruded
you must not have cruded
they must not have cruded	I must not have been cruding
you must not have been cruding
he must not have been cruding
we must not have been cruding
you must not have been cruding
they must not have been cruding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I crud?
must you crud?
must he crud?
must we crud?
must you crud?
must they crud? 	must I be cruding?
must you be cruding?
must he be cruding?
must we be cruding?
must you be cruding?
must they be cruding? 	must I have cruded?
must you have cruded?
must he have cruded?
must we have cruded?
must you have cruded?
must they have cruded? 	must I have been cruding?
must you have been cruding?
must he have been cruding?
must we have been cruding?
must you have been cruding?
must they have been cruding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not crud?
must you not crud?
must he not crud?
must we not crud?
must you not crud?
must they not crud? 	must I not be cruding?
must you not be cruding?
must he not be cruding?
must we not be cruding?
must you not be cruding?
must they not be cruding? 	must I not have cruded?
must you not have cruded?
must he not have cruded?
must we not have cruded?
must you not have cruded?
must they not have cruded? 	must I not have been cruding?
must you not have been cruding?
must he not have been cruding?
must we not have been cruding?
must you not have been cruding?
must they not have been cruding?