I must assign you must assign he must assign we must assign you must assign they must assign
Forma con V-ing
I must be assigning you must be assigning he must be assigning we must be assigning you must be assigning they must be assigning
Perfecto
I must have assigned you must have assigned he must have assigned we must have assigned you must have assigned they must have assigned
Perfecto con V-ing
I must have been assigning you must have been assigning he must have been assigning we must have been assigning you must have been assigning they must have been assigning
Negación
Forma simple
I must not assign you must not assign he must not assign we must not assign you must not assign they must not assign
Forma con V-ing
I must not be assigning you must not be assigning he must not be assigning we must not be assigning you must not be assigning they must not be assigning
Perfecto
I must not have assigned you must not have assigned he must not have assigned we must not have assigned you must not have assigned they must not have assigned
Perfecto con V-ing
I must not have been assigning you must not have been assigning he must not have been assigning we must not have been assigning you must not have been assigning they must not have been assigning
Forma interrogativa
Forma simple
must I assign? must you assign? must he assign? must we assign? must you assign? must they assign?
Forma con V-ing
must I be assigning? must you be assigning? must he be assigning? must we be assigning? must you be assigning? must they be assigning?
Perfecto
must I have assigned? must you have assigned? must he have assigned? must we have assigned? must you have assigned? must they have assigned?
Perfecto con V-ing
must I have been assigning? must you have been assigning? must he have been assigning? must we have been assigning? must you have been assigning? must they have been assigning?
Forma interro-negativa
Forma simple
must I not assign? must you not assign? must he not assign? must we not assign? must you not assign? must they not assign?
Forma con V-ing
must I not be assigning? must you not be assigning? must he not be assigning? must we not be assigning? must you not be assigning? must they not be assigning?
Perfecto
must I not have assigned? must you not have assigned? must he not have assigned? must we not have assigned? must you not have assigned? must they not have assigned?
Perfecto con V-ing
must I not have been assigning? must you not have been assigning? must he not have been assigning? must we not have been assigning? must you not have been assigning? must they not have been assigning?