I must brail you must brail he must brail we must brail you must brail they must brail
Forma con V-ing
I must be brailing you must be brailing he must be brailing we must be brailing you must be brailing they must be brailing
Perfecto
I must have brailed you must have brailed he must have brailed we must have brailed you must have brailed they must have brailed
Perfecto con V-ing
I must have been brailing you must have been brailing he must have been brailing we must have been brailing you must have been brailing they must have been brailing
Negación
Forma simple
I must not brail you must not brail he must not brail we must not brail you must not brail they must not brail
Forma con V-ing
I must not be brailing you must not be brailing he must not be brailing we must not be brailing you must not be brailing they must not be brailing
Perfecto
I must not have brailed you must not have brailed he must not have brailed we must not have brailed you must not have brailed they must not have brailed
Perfecto con V-ing
I must not have been brailing you must not have been brailing he must not have been brailing we must not have been brailing you must not have been brailing they must not have been brailing
Forma interrogativa
Forma simple
must I brail? must you brail? must he brail? must we brail? must you brail? must they brail?
Forma con V-ing
must I be brailing? must you be brailing? must he be brailing? must we be brailing? must you be brailing? must they be brailing?
Perfecto
must I have brailed? must you have brailed? must he have brailed? must we have brailed? must you have brailed? must they have brailed?
Perfecto con V-ing
must I have been brailing? must you have been brailing? must he have been brailing? must we have been brailing? must you have been brailing? must they have been brailing?
Forma interro-negativa
Forma simple
must I not brail? must you not brail? must he not brail? must we not brail? must you not brail? must they not brail?
Forma con V-ing
must I not be brailing? must you not be brailing? must he not be brailing? must we not be brailing? must you not be brailing? must they not be brailing?
Perfecto
must I not have brailed? must you not have brailed? must he not have brailed? must we not have brailed? must you not have brailed? must they not have brailed?
Perfecto con V-ing
must I not have been brailing? must you not have been brailing? must he not have been brailing? must we not have been brailing? must you not have been brailing? must they not have been brailing?