I must feel you must feel he must feel we must feel you must feel they must feel
Forma con V-ing
I must be feeling you must be feeling he must be feeling we must be feeling you must be feeling they must be feeling
Perfecto
I must have felt you must have felt he must have felt we must have felt you must have felt they must have felt
Perfecto con V-ing
I must have been feeling you must have been feeling he must have been feeling we must have been feeling you must have been feeling they must have been feeling
Negación
Forma simple
I must not feel you must not feel he must not feel we must not feel you must not feel they must not feel
Forma con V-ing
I must not be feeling you must not be feeling he must not be feeling we must not be feeling you must not be feeling they must not be feeling
Perfecto
I must not have felt you must not have felt he must not have felt we must not have felt you must not have felt they must not have felt
Perfecto con V-ing
I must not have been feeling you must not have been feeling he must not have been feeling we must not have been feeling you must not have been feeling they must not have been feeling
Forma interrogativa
Forma simple
must I feel? must you feel? must he feel? must we feel? must you feel? must they feel?
Forma con V-ing
must I be feeling? must you be feeling? must he be feeling? must we be feeling? must you be feeling? must they be feeling?
Perfecto
must I have felt? must you have felt? must he have felt? must we have felt? must you have felt? must they have felt?
Perfecto con V-ing
must I have been feeling? must you have been feeling? must he have been feeling? must we have been feeling? must you have been feeling? must they have been feeling?
Forma interro-negativa
Forma simple
must I not feel? must you not feel? must he not feel? must we not feel? must you not feel? must they not feel?
Forma con V-ing
must I not be feeling? must you not be feeling? must he not be feeling? must we not be feeling? must you not be feeling? must they not be feeling?
Perfecto
must I not have felt? must you not have felt? must he not have felt? must we not have felt? must you not have felt? must they not have felt?
Perfecto con V-ing
must I not have been feeling? must you not have been feeling? must he not have been feeling? must we not have been feeling? must you not have been feeling? must they not have been feeling?