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