I must memorize you must memorize he must memorize we must memorize you must memorize they must memorize
Forma con V-ing
I must be memorizing you must be memorizing he must be memorizing we must be memorizing you must be memorizing they must be memorizing
Perfecto
I must have memorized you must have memorized he must have memorized we must have memorized you must have memorized they must have memorized
Perfecto con V-ing
I must have been memorizing you must have been memorizing he must have been memorizing we must have been memorizing you must have been memorizing they must have been memorizing
Negación
Forma simple
I must not memorize you must not memorize he must not memorize we must not memorize you must not memorize they must not memorize
Forma con V-ing
I must not be memorizing you must not be memorizing he must not be memorizing we must not be memorizing you must not be memorizing they must not be memorizing
Perfecto
I must not have memorized you must not have memorized he must not have memorized we must not have memorized you must not have memorized they must not have memorized
Perfecto con V-ing
I must not have been memorizing you must not have been memorizing he must not have been memorizing we must not have been memorizing you must not have been memorizing they must not have been memorizing
Forma interrogativa
Forma simple
must I memorize? must you memorize? must he memorize? must we memorize? must you memorize? must they memorize?
Forma con V-ing
must I be memorizing? must you be memorizing? must he be memorizing? must we be memorizing? must you be memorizing? must they be memorizing?
Perfecto
must I have memorized? must you have memorized? must he have memorized? must we have memorized? must you have memorized? must they have memorized?
Perfecto con V-ing
must I have been memorizing? must you have been memorizing? must he have been memorizing? must we have been memorizing? must you have been memorizing? must they have been memorizing?
Forma interro-negativa
Forma simple
must I not memorize? must you not memorize? must he not memorize? must we not memorize? must you not memorize? must they not memorize?
Forma con V-ing
must I not be memorizing? must you not be memorizing? must he not be memorizing? must we not be memorizing? must you not be memorizing? must they not be memorizing?
Perfecto
must I not have memorized? must you not have memorized? must he not have memorized? must we not have memorized? must you not have memorized? must they not have memorized?
Perfecto con V-ing
must I not have been memorizing? must you not have been memorizing? must he not have been memorizing? must we not have been memorizing? must you not have been memorizing? must they not have been memorizing?