can hack
Verbo regular: hack - hacked- hacked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can hack
you can hack
she can hack
we can hack
you can hack
they can hack 	I can be hacking
you can be hacking
she can be hacking
we can be hacking
you can be hacking
they can be hacking	I can have hacked
you can have hacked
she can have hacked
we can have hacked
you can have hacked
they can have hacked	I can have been hacking
you can have been hacking
she can have been hacking
we can have been hacking
you can have been hacking
they can have been hacking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot hack
you cannot hack
she cannot hack
we cannot hack
you cannot hack
they cannot hack 	I cannot be hacking
you cannot be hacking
she cannot be hacking
we cannot be hacking
you cannot be hacking
they cannot be hacking	I cannot have hacked
you cannot have hacked
she cannot have hacked
we cannot have hacked
you cannot have hacked
they cannot have hacked	I cannot have been hacking
you cannot have been hacking
she cannot have been hacking
we cannot have been hacking
you cannot have been hacking
they cannot have been hacking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I hack?
can you hack?
can she hack?
can we hack?
can you hack?
can they hack? 	can I be hacking?
can you be hacking?
can she be hacking?
can we be hacking?
can you be hacking?
can they be hacking? 	can I have hacked?
can you have hacked?
can she have hacked?
can we have hacked?
can you have hacked?
can they have hacked? 	can I have been hacking?
can you have been hacking?
can she have been hacking?
can we have been hacking?
can you have been hacking?
can they have been hacking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not hack?
can you not hack?
can she not hack?
can we not hack?
can you not hack?
can they not hack? 	can I not be hacking?
can you not be hacking?
can she not be hacking?
can we not be hacking?
can you not be hacking?
can they not be hacking? 	can I not have hacked?
can you not have hacked?
can she not have hacked?
can we not have hacked?
can you not have hacked?
can they not have hacked? 	can I not have been hacking?
can you not have been hacking?
can she not have been hacking?
can we not have been hacking?
can you not have been hacking?
can they not have been hacking?