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