must ail
Verbe régulier : ail - ailed- ailed
Traduction française : affliger - être souffrant 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must ail
you must ail
she must ail
we must ail
you must ail
they must ail 	I must be ailing
you must be ailing
she must be ailing
we must be ailing
you must be ailing
they must be ailing	I must have ailed
you must have ailed
she must have ailed
we must have ailed
you must have ailed
they must have ailed	I must have been ailing
you must have been ailing
she must have been ailing
we must have been ailing
you must have been ailing
they must have been ailing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't ail
you mustn't ail
she mustn't ail
we mustn't ail
you mustn't ail
they mustn't ail 	I mustn't be ailing
you mustn't be ailing
she mustn't be ailing
we mustn't be ailing
you mustn't be ailing
they mustn't be ailing	I mustn't have ailed
you mustn't have ailed
she mustn't have ailed
we mustn't have ailed
you mustn't have ailed
they mustn't have ailed	I mustn't have been ailing
you mustn't have been ailing
she mustn't have been ailing
we mustn't have been ailing
you mustn't have been ailing
they mustn't have been ailing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I ail?
must you ail?
must she ail?
must we ail?
must you ail?
must they ail? 	must I be ailing?
must you be ailing?
must she be ailing?
must we be ailing?
must you be ailing?
must they be ailing? 	must I have ailed?
must you have ailed?
must she have ailed?
must we have ailed?
must you have ailed?
must they have ailed? 	must I have been ailing?
must you have been ailing?
must she have been ailing?
must we have been ailing?
must you have been ailing?
must they have been ailing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I ail?
mustn't you ail?
mustn't she ail?
mustn't we ail?
mustn't you ail?
mustn't they ail? 	mustn't I be ailing?
mustn't you be ailing?
mustn't she be ailing?
mustn't we be ailing?
mustn't you be ailing?
mustn't they be ailing? 	mustn't I have ailed?
mustn't you have ailed?
mustn't she have ailed?
mustn't we have ailed?
mustn't you have ailed?
mustn't they have ailed? 	mustn't I have been ailing?
mustn't you have been ailing?
mustn't she have been ailing?
mustn't we have been ailing?
mustn't you have been ailing?
mustn't they have been ailing?