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
she must callus
we must callus
you must callus
they must callus 	I must be callusing
you must be callusing
she must be callusing
we must be callusing
you must be callusing
they must be callusing	I must have callused
you must have callused
she 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
she 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
she 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
she 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
she 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
she 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 she callus?
must we callus?
must you callus?
must they callus? 	must I be callusing?
must you be callusing?
must she be callusing?
must we be callusing?
must you be callusing?
must they be callusing? 	must I have callused?
must you have callused?
must she 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 she 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 she 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 she 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 she 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 she have been callusing?
mustn't we have been callusing?
mustn't you have been callusing?
mustn't they have been callusing?