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