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