I must exercise you must exercise he must exercise we must exercise you must exercise they must exercise
Forma con V-ing
I must be exercising you must be exercising he must be exercising we must be exercising you must be exercising they must be exercising
Perfecto
I must have exercised you must have exercised he must have exercised we must have exercised you must have exercised they must have exercised
Perfecto con V-ing
I must have been exercising you must have been exercising he must have been exercising we must have been exercising you must have been exercising they must have been exercising
Negación
Forma simple
I must not exercise you must not exercise he must not exercise we must not exercise you must not exercise they must not exercise
Forma con V-ing
I must not be exercising you must not be exercising he must not be exercising we must not be exercising you must not be exercising they must not be exercising
Perfecto
I must not have exercised you must not have exercised he must not have exercised we must not have exercised you must not have exercised they must not have exercised
Perfecto con V-ing
I must not have been exercising you must not have been exercising he must not have been exercising we must not have been exercising you must not have been exercising they must not have been exercising
Forma interrogativa
Forma simple
must I exercise? must you exercise? must he exercise? must we exercise? must you exercise? must they exercise?
Forma con V-ing
must I be exercising? must you be exercising? must he be exercising? must we be exercising? must you be exercising? must they be exercising?
Perfecto
must I have exercised? must you have exercised? must he have exercised? must we have exercised? must you have exercised? must they have exercised?
Perfecto con V-ing
must I have been exercising? must you have been exercising? must he have been exercising? must we have been exercising? must you have been exercising? must they have been exercising?
Forma interro-negativa
Forma simple
must I not exercise? must you not exercise? must he not exercise? must we not exercise? must you not exercise? must they not exercise?
Forma con V-ing
must I not be exercising? must you not be exercising? must he not be exercising? must we not be exercising? must you not be exercising? must they not be exercising?
Perfecto
must I not have exercised? must you not have exercised? must he not have exercised? must we not have exercised? must you not have exercised? must they not have exercised?
Perfecto con V-ing
must I not have been exercising? must you not have been exercising? must he not have been exercising? must we not have been exercising? must you not have been exercising? must they not have been exercising?