can hack
Verbo regular: hack - hacked- hacked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com 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	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't hack
you can't hack
she can't hack
we can't hack
you can't hack
they can't hack 	I can't be hacking
you can't be hacking
she can't be hacking
we can't be hacking
you can't be hacking
they can't be hacking	I can't have hacked
you can't have hacked
she can't have hacked
we can't have hacked
you can't have hacked
they can't have hacked	I can't have been hacking
you can't have been hacking
she can't have been hacking
we can't have been hacking
you can't have been hacking
they can't have been hacking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com 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-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I hack?
can't you hack?
can't she hack?
can't we hack?
can't you hack?
can't they hack? 	can't I be hacking?
can't you be hacking?
can't she be hacking?
can't we be hacking?
can't you be hacking?
can't they be hacking? 	can't I have hacked?
can't you have hacked?
can't she have hacked?
can't we have hacked?
can't you have hacked?
can't they have hacked? 	can't I have been hacking?
can't you have been hacking?
can't she have been hacking?
can't we have been hacking?
can't you have been hacking?
can't they have been hacking?