I must ride you must ride he must ride we must ride you must ride they must ride
Forma con V-ing
I must be riding you must be riding he must be riding we must be riding you must be riding they must be riding
Perfecto
I must have ridden you must have ridden he must have ridden we must have ridden you must have ridden they must have ridden
Perfecto con V-ing
I must have been riding you must have been riding he must have been riding we must have been riding you must have been riding they must have been riding
Negación
Forma simple
I must not ride you must not ride he must not ride we must not ride you must not ride they must not ride
Forma con V-ing
I must not be riding you must not be riding he must not be riding we must not be riding you must not be riding they must not be riding
Perfecto
I must not have ridden you must not have ridden he must not have ridden we must not have ridden you must not have ridden they must not have ridden
Perfecto con V-ing
I must not have been riding you must not have been riding he must not have been riding we must not have been riding you must not have been riding they must not have been riding
Forma interrogativa
Forma simple
must I ride? must you ride? must he ride? must we ride? must you ride? must they ride?
Forma con V-ing
must I be riding? must you be riding? must he be riding? must we be riding? must you be riding? must they be riding?
Perfecto
must I have ridden? must you have ridden? must he have ridden? must we have ridden? must you have ridden? must they have ridden?
Perfecto con V-ing
must I have been riding? must you have been riding? must he have been riding? must we have been riding? must you have been riding? must they have been riding?
Forma interro-negativa
Forma simple
must I not ride? must you not ride? must he not ride? must we not ride? must you not ride? must they not ride?
Forma con V-ing
must I not be riding? must you not be riding? must he not be riding? must we not be riding? must you not be riding? must they not be riding?
Perfecto
must I not have ridden? must you not have ridden? must he not have ridden? must we not have ridden? must you not have ridden? must they not have ridden?
Perfecto con V-ing
must I not have been riding? must you not have been riding? must he not have been riding? must we not have been riding? must you not have been riding? must they not have been riding?