I can keypunch you can keypunch he can keypunch we can keypunch you can keypunch they can keypunch
Forma con V-ing
I can be keypunching you can be keypunching he can be keypunching we can be keypunching you can be keypunching they can be keypunching
Perfecto
I can have keypunched you can have keypunched he can have keypunched we can have keypunched you can have keypunched they can have keypunched
Perfecto con V-ing
I can have been keypunching you can have been keypunching he can have been keypunching we can have been keypunching you can have been keypunching they can have been keypunching
Negación
Forma simple
I can't keypunch you can't keypunch he can't keypunch we can't keypunch you can't keypunch they can't keypunch
Forma con V-ing
I can't be keypunching you can't be keypunching he can't be keypunching we can't be keypunching you can't be keypunching they can't be keypunching
Perfecto
I can't have keypunched you can't have keypunched he can't have keypunched we can't have keypunched you can't have keypunched they can't have keypunched
Perfecto con V-ing
I can't have been keypunching you can't have been keypunching he can't have been keypunching we can't have been keypunching you can't have been keypunching they can't have been keypunching
Forma interrogativa
Forma simple
can I keypunch? can you keypunch? can he keypunch? can we keypunch? can you keypunch? can they keypunch?
Forma con V-ing
can I be keypunching? can you be keypunching? can he be keypunching? can we be keypunching? can you be keypunching? can they be keypunching?
Perfecto
can I have keypunched? can you have keypunched? can he have keypunched? can we have keypunched? can you have keypunched? can they have keypunched?
Perfecto con V-ing
can I have been keypunching? can you have been keypunching? can he have been keypunching? can we have been keypunching? can you have been keypunching? can they have been keypunching?
Forma interro-negativa
Forma simple
can't I keypunch? can't you keypunch? can't he keypunch? can't we keypunch? can't you keypunch? can't they keypunch?
Forma con V-ing
can't I be keypunching? can't you be keypunching? can't he be keypunching? can't we be keypunching? can't you be keypunching? can't they be keypunching?
Perfecto
can't I have keypunched? can't you have keypunched? can't he have keypunched? can't we have keypunched? can't you have keypunched? can't they have keypunched?
Perfecto con V-ing
can't I have been keypunching? can't you have been keypunching? can't he have been keypunching? can't we have been keypunching? can't you have been keypunching? can't they have been keypunching?