must callus
Verbe régulier : callus - callused- callused

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must callus
you must callus
he must callus
we must callus
you must callus
they must callus 	I must be callusing
you must be callusing
he must be callusing
we must be callusing
you must be callusing
they must be callusing	I must have callused
you must have callused
he must have callused
we must have callused
you must have callused
they must have callused	I must have been callusing
you must have been callusing
he must have been callusing
we must have been callusing
you must have been callusing
they must have been callusing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't callus
you mustn't callus
he mustn't callus
we mustn't callus
you mustn't callus
they mustn't callus 	I mustn't be callusing
you mustn't be callusing
he mustn't be callusing
we mustn't be callusing
you mustn't be callusing
they mustn't be callusing	I mustn't have callused
you mustn't have callused
he mustn't have callused
we mustn't have callused
you mustn't have callused
they mustn't have callused	I mustn't have been callusing
you mustn't have been callusing
he mustn't have been callusing
we mustn't have been callusing
you mustn't have been callusing
they mustn't have been callusing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I callus?
must you callus?
must he callus?
must we callus?
must you callus?
must they callus? 	must I be callusing?
must you be callusing?
must he be callusing?
must we be callusing?
must you be callusing?
must they be callusing? 	must I have callused?
must you have callused?
must he have callused?
must we have callused?
must you have callused?
must they have callused? 	must I have been callusing?
must you have been callusing?
must he have been callusing?
must we have been callusing?
must you have been callusing?
must they have been callusing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I callus?
mustn't you callus?
mustn't he callus?
mustn't we callus?
mustn't you callus?
mustn't they callus? 	mustn't I be callusing?
mustn't you be callusing?
mustn't he be callusing?
mustn't we be callusing?
mustn't you be callusing?
mustn't they be callusing? 	mustn't I have callused?
mustn't you have callused?
mustn't he have callused?
mustn't we have callused?
mustn't you have callused?
mustn't they have callused? 	mustn't I have been callusing?
mustn't you have been callusing?
mustn't he have been callusing?
mustn't we have been callusing?
mustn't you have been callusing?
mustn't they have been callusing?