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