I must twist you must twist he must twist we must twist you must twist they must twist
Forma con V-ing
I must be twisting you must be twisting he must be twisting we must be twisting you must be twisting they must be twisting
Perfecto
I must have twisted you must have twisted he must have twisted we must have twisted you must have twisted they must have twisted
Perfecto con V-ing
I must have been twisting you must have been twisting he must have been twisting we must have been twisting you must have been twisting they must have been twisting
Negación
Forma simple
I must not twist you must not twist he must not twist we must not twist you must not twist they must not twist
Forma con V-ing
I must not be twisting you must not be twisting he must not be twisting we must not be twisting you must not be twisting they must not be twisting
Perfecto
I must not have twisted you must not have twisted he must not have twisted we must not have twisted you must not have twisted they must not have twisted
Perfecto con V-ing
I must not have been twisting you must not have been twisting he must not have been twisting we must not have been twisting you must not have been twisting they must not have been twisting
Forma interrogativa
Forma simple
must I twist? must you twist? must he twist? must we twist? must you twist? must they twist?
Forma con V-ing
must I be twisting? must you be twisting? must he be twisting? must we be twisting? must you be twisting? must they be twisting?
Perfecto
must I have twisted? must you have twisted? must he have twisted? must we have twisted? must you have twisted? must they have twisted?
Perfecto con V-ing
must I have been twisting? must you have been twisting? must he have been twisting? must we have been twisting? must you have been twisting? must they have been twisting?
Forma interro-negativa
Forma simple
must I not twist? must you not twist? must he not twist? must we not twist? must you not twist? must they not twist?
Forma con V-ing
must I not be twisting? must you not be twisting? must he not be twisting? must we not be twisting? must you not be twisting? must they not be twisting?
Perfecto
must I not have twisted? must you not have twisted? must he not have twisted? must we not have twisted? must you not have twisted? must they not have twisted?
Perfecto con V-ing
must I not have been twisting? must you not have been twisting? must he not have been twisting? must we not have been twisting? must you not have been twisting? must they not have been twisting?