can attack
Verbo regular: attack - attacked- attacked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can attack
you can attack
she can attack
we can attack
you can attack
they can attack 	I can be attacking
you can be attacking
she can be attacking
we can be attacking
you can be attacking
they can be attacking	I can have attacked
you can have attacked
she can have attacked
we can have attacked
you can have attacked
they can have attacked	I can have been attacking
you can have been attacking
she can have been attacking
we can have been attacking
you can have been attacking
they can have been attacking	

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

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