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