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