I must march you must march he must march we must march you must march they must march
Forma con V-ing
I must be marching you must be marching he must be marching we must be marching you must be marching they must be marching
Perfecto
I must have marched you must have marched he must have marched we must have marched you must have marched they must have marched
Perfecto con V-ing
I must have been marching you must have been marching he must have been marching we must have been marching you must have been marching they must have been marching
Negación
Forma simple
I mustn't march you mustn't march he mustn't march we mustn't march you mustn't march they mustn't march
Forma con V-ing
I mustn't be marching you mustn't be marching he mustn't be marching we mustn't be marching you mustn't be marching they mustn't be marching
Perfecto
I mustn't have marched you mustn't have marched he mustn't have marched we mustn't have marched you mustn't have marched they mustn't have marched
Perfecto con V-ing
I mustn't have been marching you mustn't have been marching he mustn't have been marching we mustn't have been marching you mustn't have been marching they mustn't have been marching
Forma interrogativa
Forma simple
must I march? must you march? must he march? must we march? must you march? must they march?
Forma con V-ing
must I be marching? must you be marching? must he be marching? must we be marching? must you be marching? must they be marching?
Perfecto
must I have marched? must you have marched? must he have marched? must we have marched? must you have marched? must they have marched?
Perfecto con V-ing
must I have been marching? must you have been marching? must he have been marching? must we have been marching? must you have been marching? must they have been marching?
Forma interro-negativa
Forma simple
mustn't I march? mustn't you march? mustn't he march? mustn't we march? mustn't you march? mustn't they march?
Forma con V-ing
mustn't I be marching? mustn't you be marching? mustn't he be marching? mustn't we be marching? mustn't you be marching? mustn't they be marching?
Perfecto
mustn't I have marched? mustn't you have marched? mustn't he have marched? mustn't we have marched? mustn't you have marched? mustn't they have marched?
Perfecto con V-ing
mustn't I have been marching? mustn't you have been marching? mustn't he have been marching? mustn't we have been marching? mustn't you have been marching? mustn't they have been marching?