I must ail you must ail he must ail we must ail you must ail they must ail
Forma com V-ing
I must be ailing you must be ailing he must be ailing we must be ailing you must be ailing they must be ailing
Perfeito
I must have ailed you must have ailed he must have ailed we must have ailed you must have ailed they must have ailed
Perfeito com V-ing
I must have been ailing you must have been ailing he must have been ailing we must have been ailing you must have been ailing they must have been ailing
Negação
Forma simple
I mustn't ail you mustn't ail he mustn't ail we mustn't ail you mustn't ail they mustn't ail
Forma com V-ing
I mustn't be ailing you mustn't be ailing he mustn't be ailing we mustn't be ailing you mustn't be ailing they mustn't be ailing
Perfeito
I mustn't have ailed you mustn't have ailed he mustn't have ailed we mustn't have ailed you mustn't have ailed they mustn't have ailed
Perfeito com V-ing
I mustn't have been ailing you mustn't have been ailing he mustn't have been ailing we mustn't have been ailing you mustn't have been ailing they mustn't have been ailing
Forma interrogativa
Forma simple
must I ail? must you ail? must he ail? must we ail? must you ail? must they ail?
Forma com V-ing
must I be ailing? must you be ailing? must he be ailing? must we be ailing? must you be ailing? must they be ailing?
Perfeito
must I have ailed? must you have ailed? must he have ailed? must we have ailed? must you have ailed? must they have ailed?
Perfeito com V-ing
must I have been ailing? must you have been ailing? must he have been ailing? must we have been ailing? must you have been ailing? must they have been ailing?
Forma interro-Negação
Forma simple
mustn't I ail? mustn't you ail? mustn't he ail? mustn't we ail? mustn't you ail? mustn't they ail?
Forma com V-ing
mustn't I be ailing? mustn't you be ailing? mustn't he be ailing? mustn't we be ailing? mustn't you be ailing? mustn't they be ailing?
Perfeito
mustn't I have ailed? mustn't you have ailed? mustn't he have ailed? mustn't we have ailed? mustn't you have ailed? mustn't they have ailed?
Perfeito com V-ing
mustn't I have been ailing? mustn't you have been ailing? mustn't he have been ailing? mustn't we have been ailing? mustn't you have been ailing? mustn't they have been ailing?