I can attack you can attack he can attack we can attack you can attack they can attack
Forma con V-ing
I can be attacking you can be attacking he can be attacking we can be attacking you can be attacking they can be attacking
Perfecto
I can have attacked you can have attacked he can have attacked we can have attacked you can have attacked they can have attacked
Perfecto con V-ing
I can have been attacking you can have been attacking he can have been attacking we can have been attacking you can have been attacking they can have been attacking
Negación
Forma simple
I can't attack you can't attack he can't attack we can't attack you can't attack they can't attack
Forma con V-ing
I can't be attacking you can't be attacking he can't be attacking we can't be attacking you can't be attacking they can't be attacking
Perfecto
I can't have attacked you can't have attacked he can't have attacked we can't have attacked you can't have attacked they can't have attacked
Perfecto con V-ing
I can't have been attacking you can't have been attacking he can't have been attacking we can't have been attacking you can't have been attacking they can't have been attacking
Forma interrogativa
Forma simple
can I attack? can you attack? can he attack? can we attack? can you attack? can they attack?
Forma con V-ing
can I be attacking? can you be attacking? can he be attacking? can we be attacking? can you be attacking? can they be attacking?
Perfecto
can I have attacked? can you have attacked? can he have attacked? can we have attacked? can you have attacked? can they have attacked?
Perfecto con V-ing
can I have been attacking? can you have been attacking? can he have been attacking? can we have been attacking? can you have been attacking? can they have been attacking?
Forma interro-negativa
Forma simple
can't I attack? can't you attack? can't he attack? can't we attack? can't you attack? can't they attack?
Forma con V-ing
can't I be attacking? can't you be attacking? can't he be attacking? can't we be attacking? can't you be attacking? can't they be attacking?
Perfecto
can't I have attacked? can't you have attacked? can't he have attacked? can't we have attacked? can't you have attacked? can't they have attacked?
Perfecto con V-ing
can't I have been attacking? can't you have been attacking? can't he have been attacking? can't we have been attacking? can't you have been attacking? can't they have been attacking?