I must row you must row he must row we must row you must row they must row
Forma con V-ing
I must be rowing you must be rowing he must be rowing we must be rowing you must be rowing they must be rowing
Perfecto
I must have rowed you must have rowed he must have rowed we must have rowed you must have rowed they must have rowed
Perfecto con V-ing
I must have been rowing you must have been rowing he must have been rowing we must have been rowing you must have been rowing they must have been rowing
Negación
Forma simple
I must not row you must not row he must not row we must not row you must not row they must not row
Forma con V-ing
I must not be rowing you must not be rowing he must not be rowing we must not be rowing you must not be rowing they must not be rowing
Perfecto
I must not have rowed you must not have rowed he must not have rowed we must not have rowed you must not have rowed they must not have rowed
Perfecto con V-ing
I must not have been rowing you must not have been rowing he must not have been rowing we must not have been rowing you must not have been rowing they must not have been rowing
Forma interrogativa
Forma simple
must I row? must you row? must he row? must we row? must you row? must they row?
Forma con V-ing
must I be rowing? must you be rowing? must he be rowing? must we be rowing? must you be rowing? must they be rowing?
Perfecto
must I have rowed? must you have rowed? must he have rowed? must we have rowed? must you have rowed? must they have rowed?
Perfecto con V-ing
must I have been rowing? must you have been rowing? must he have been rowing? must we have been rowing? must you have been rowing? must they have been rowing?
Forma interro-negativa
Forma simple
must I not row? must you not row? must he not row? must we not row? must you not row? must they not row?
Forma con V-ing
must I not be rowing? must you not be rowing? must he not be rowing? must we not be rowing? must you not be rowing? must they not be rowing?
Perfecto
must I not have rowed? must you not have rowed? must he not have rowed? must we not have rowed? must you not have rowed? must they not have rowed?
Perfecto con V-ing
must I not have been rowing? must you not have been rowing? must he not have been rowing? must we not have been rowing? must you not have been rowing? must they not have been rowing?