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