I must boom you must boom he must boom we must boom you must boom they must boom
Forma con V-ing
I must be booming you must be booming he must be booming we must be booming you must be booming they must be booming
Perfecto
I must have boomed you must have boomed he must have boomed we must have boomed you must have boomed they must have boomed
Perfecto con V-ing
I must have been booming you must have been booming he must have been booming we must have been booming you must have been booming they must have been booming
Negación
Forma simple
I must not boom you must not boom he must not boom we must not boom you must not boom they must not boom
Forma con V-ing
I must not be booming you must not be booming he must not be booming we must not be booming you must not be booming they must not be booming
Perfecto
I must not have boomed you must not have boomed he must not have boomed we must not have boomed you must not have boomed they must not have boomed
Perfecto con V-ing
I must not have been booming you must not have been booming he must not have been booming we must not have been booming you must not have been booming they must not have been booming
Forma interrogativa
Forma simple
must I boom? must you boom? must he boom? must we boom? must you boom? must they boom?
Forma con V-ing
must I be booming? must you be booming? must he be booming? must we be booming? must you be booming? must they be booming?
Perfecto
must I have boomed? must you have boomed? must he have boomed? must we have boomed? must you have boomed? must they have boomed?
Perfecto con V-ing
must I have been booming? must you have been booming? must he have been booming? must we have been booming? must you have been booming? must they have been booming?
Forma interro-negativa
Forma simple
must I not boom? must you not boom? must he not boom? must we not boom? must you not boom? must they not boom?
Forma con V-ing
must I not be booming? must you not be booming? must he not be booming? must we not be booming? must you not be booming? must they not be booming?
Perfecto
must I not have boomed? must you not have boomed? must he not have boomed? must we not have boomed? must you not have boomed? must they not have boomed?
Perfecto con V-ing
must I not have been booming? must you not have been booming? must he not have been booming? must we not have been booming? must you not have been booming? must they not have been booming?