I must discolor you must discolor she must discolor we must discolor you must discolor they must discolor
Forma con V-ing
I must be discoloring you must be discoloring she must be discoloring we must be discoloring you must be discoloring they must be discoloring
Perfecto
I must have discolored you must have discolored she must have discolored we must have discolored you must have discolored they must have discolored
Perfecto con V-ing
I must have been discoloring you must have been discoloring she must have been discoloring we must have been discoloring you must have been discoloring they must have been discoloring
Negación
Forma simple
I must not discolor you must not discolor she must not discolor we must not discolor you must not discolor they must not discolor
Forma con V-ing
I must not be discoloring you must not be discoloring she must not be discoloring we must not be discoloring you must not be discoloring they must not be discoloring
Perfecto
I must not have discolored you must not have discolored she must not have discolored we must not have discolored you must not have discolored they must not have discolored
Perfecto con V-ing
I must not have been discoloring you must not have been discoloring she must not have been discoloring we must not have been discoloring you must not have been discoloring they must not have been discoloring
Forma interrogativa
Forma simple
must I discolor? must you discolor? must she discolor? must we discolor? must you discolor? must they discolor?
Forma con V-ing
must I be discoloring? must you be discoloring? must she be discoloring? must we be discoloring? must you be discoloring? must they be discoloring?
Perfecto
must I have discolored? must you have discolored? must she have discolored? must we have discolored? must you have discolored? must they have discolored?
Perfecto con V-ing
must I have been discoloring? must you have been discoloring? must she have been discoloring? must we have been discoloring? must you have been discoloring? must they have been discoloring?
Forma interro-negativa
Forma simple
must I not discolor? must you not discolor? must she not discolor? must we not discolor? must you not discolor? must they not discolor?
Forma con V-ing
must I not be discoloring? must you not be discoloring? must she not be discoloring? must we not be discoloring? must you not be discoloring? must they not be discoloring?
Perfecto
must I not have discolored? must you not have discolored? must she not have discolored? must we not have discolored? must you not have discolored? must they not have discolored?
Perfecto con V-ing
must I not have been discoloring? must you not have been discoloring? must she not have been discoloring? must we not have been discoloring? must you not have been discoloring? must they not have been discoloring?