I must jam you must jam she must jam we must jam you must jam they must jam
Forma con V-ing
I must be jamming you must be jamming she must be jamming we must be jamming you must be jamming they must be jamming
Perfecto
I must have jammed you must have jammed she 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 she 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 she 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 she 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 she 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 she 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 she jam? must we jam? must you jam? must they jam?
Forma con V-ing
must I be jamming? must you be jamming? must she be jamming? must we be jamming? must you be jamming? must they be jamming?
Perfecto
must I have jammed? must you have jammed? must she 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 she 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 she 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 she 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 she 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 she have been jamming? mustn't we have been jamming? mustn't you have been jamming? mustn't they have been jamming?