I must ax you must ax he must ax we must ax you must ax they must ax
Forma con V-ing
I must be axing you must be axing he must be axing we must be axing you must be axing they must be axing
Perfecto
I must have axed you must have axed he must have axed we must have axed you must have axed they must have axed
Perfecto con V-ing
I must have been axing you must have been axing he must have been axing we must have been axing you must have been axing they must have been axing
Negación
Forma simple
I mustn't ax you mustn't ax he mustn't ax we mustn't ax you mustn't ax they mustn't ax
Forma con V-ing
I mustn't be axing you mustn't be axing he mustn't be axing we mustn't be axing you mustn't be axing they mustn't be axing
Perfecto
I mustn't have axed you mustn't have axed he mustn't have axed we mustn't have axed you mustn't have axed they mustn't have axed
Perfecto con V-ing
I mustn't have been axing you mustn't have been axing he mustn't have been axing we mustn't have been axing you mustn't have been axing they mustn't have been axing
Forma interrogativa
Forma simple
must I ax? must you ax? must he ax? must we ax? must you ax? must they ax?
Forma con V-ing
must I be axing? must you be axing? must he be axing? must we be axing? must you be axing? must they be axing?
Perfecto
must I have axed? must you have axed? must he have axed? must we have axed? must you have axed? must they have axed?
Perfecto con V-ing
must I have been axing? must you have been axing? must he have been axing? must we have been axing? must you have been axing? must they have been axing?
Forma interro-negativa
Forma simple
mustn't I ax? mustn't you ax? mustn't he ax? mustn't we ax? mustn't you ax? mustn't they ax?
Forma con V-ing
mustn't I be axing? mustn't you be axing? mustn't he be axing? mustn't we be axing? mustn't you be axing? mustn't they be axing?
Perfecto
mustn't I have axed? mustn't you have axed? mustn't he have axed? mustn't we have axed? mustn't you have axed? mustn't they have axed?
Perfecto con V-ing
mustn't I have been axing? mustn't you have been axing? mustn't he have been axing? mustn't we have been axing? mustn't you have been axing? mustn't they have been axing?