must airmail
Verbe régulier : airmail - airmailed- airmailed
Traduction française : expédier par avion 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must airmail
you must airmail
he must airmail
we must airmail
you must airmail
they must airmail 	I must be airmailing
you must be airmailing
he must be airmailing
we must be airmailing
you must be airmailing
they must be airmailing	I must have airmailed
you must have airmailed
he must have airmailed
we must have airmailed
you must have airmailed
they must have airmailed	I must have been airmailing
you must have been airmailing
he must have been airmailing
we must have been airmailing
you must have been airmailing
they must have been airmailing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't airmail
you mustn't airmail
he mustn't airmail
we mustn't airmail
you mustn't airmail
they mustn't airmail 	I mustn't be airmailing
you mustn't be airmailing
he mustn't be airmailing
we mustn't be airmailing
you mustn't be airmailing
they mustn't be airmailing	I mustn't have airmailed
you mustn't have airmailed
he mustn't have airmailed
we mustn't have airmailed
you mustn't have airmailed
they mustn't have airmailed	I mustn't have been airmailing
you mustn't have been airmailing
he mustn't have been airmailing
we mustn't have been airmailing
you mustn't have been airmailing
they mustn't have been airmailing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I airmail?
must you airmail?
must he airmail?
must we airmail?
must you airmail?
must they airmail? 	must I be airmailing?
must you be airmailing?
must he be airmailing?
must we be airmailing?
must you be airmailing?
must they be airmailing? 	must I have airmailed?
must you have airmailed?
must he have airmailed?
must we have airmailed?
must you have airmailed?
must they have airmailed? 	must I have been airmailing?
must you have been airmailing?
must he have been airmailing?
must we have been airmailing?
must you have been airmailing?
must they have been airmailing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I airmail?
mustn't you airmail?
mustn't he airmail?
mustn't we airmail?
mustn't you airmail?
mustn't they airmail? 	mustn't I be airmailing?
mustn't you be airmailing?
mustn't he be airmailing?
mustn't we be airmailing?
mustn't you be airmailing?
mustn't they be airmailing? 	mustn't I have airmailed?
mustn't you have airmailed?
mustn't he have airmailed?
mustn't we have airmailed?
mustn't you have airmailed?
mustn't they have airmailed? 	mustn't I have been airmailing?
mustn't you have been airmailing?
mustn't he have been airmailing?
mustn't we have been airmailing?
mustn't you have been airmailing?
mustn't they have been airmailing?