I must march you must march she must march we must march you must march they must march
Forma con V-ing
I must be marching you must be marching she must be marching we must be marching you must be marching they must be marching
Perfecto
I must have marched you must have marched she 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 she 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 she 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 she 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 she 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 she 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 she march? must we march? must you march? must they march?
Forma con V-ing
must I be marching? must you be marching? must she be marching? must we be marching? must you be marching? must they be marching?
Perfecto
must I have marched? must you have marched? must she 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 she 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 she 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 she 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 she 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 she have been marching? mustn't we have been marching? mustn't you have been marching? mustn't they have been marching?