I must fever you must fever she must fever we must fever you must fever they must fever
Forma con V-ing
I must be fevering you must be fevering she must be fevering we must be fevering you must be fevering they must be fevering
Perfecto
I must have fevered you must have fevered she must have fevered we must have fevered you must have fevered they must have fevered
Perfecto con V-ing
I must have been fevering you must have been fevering she must have been fevering we must have been fevering you must have been fevering they must have been fevering
Negación
Forma simple
I mustn't fever you mustn't fever she mustn't fever we mustn't fever you mustn't fever they mustn't fever
Forma con V-ing
I mustn't be fevering you mustn't be fevering she mustn't be fevering we mustn't be fevering you mustn't be fevering they mustn't be fevering
Perfecto
I mustn't have fevered you mustn't have fevered she mustn't have fevered we mustn't have fevered you mustn't have fevered they mustn't have fevered
Perfecto con V-ing
I mustn't have been fevering you mustn't have been fevering she mustn't have been fevering we mustn't have been fevering you mustn't have been fevering they mustn't have been fevering
Forma interrogativa
Forma simple
must I fever? must you fever? must she fever? must we fever? must you fever? must they fever?
Forma con V-ing
must I be fevering? must you be fevering? must she be fevering? must we be fevering? must you be fevering? must they be fevering?
Perfecto
must I have fevered? must you have fevered? must she have fevered? must we have fevered? must you have fevered? must they have fevered?
Perfecto con V-ing
must I have been fevering? must you have been fevering? must she have been fevering? must we have been fevering? must you have been fevering? must they have been fevering?
Forma interro-negativa
Forma simple
mustn't I fever? mustn't you fever? mustn't she fever? mustn't we fever? mustn't you fever? mustn't they fever?
Forma con V-ing
mustn't I be fevering? mustn't you be fevering? mustn't she be fevering? mustn't we be fevering? mustn't you be fevering? mustn't they be fevering?
Perfecto
mustn't I have fevered? mustn't you have fevered? mustn't she have fevered? mustn't we have fevered? mustn't you have fevered? mustn't they have fevered?
Perfecto con V-ing
mustn't I have been fevering? mustn't you have been fevering? mustn't she have been fevering? mustn't we have been fevering? mustn't you have been fevering? mustn't they have been fevering?