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