could root
Verbo regular: root - rooted- rooted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could root
you could root
he could root
we could root
you could root
they could root 	I could be rooting
you could be rooting
he could be rooting
we could be rooting
you could be rooting
they could be rooting	I could have rooted
you could have rooted
he could have rooted
we could have rooted
you could have rooted
they could have rooted	I could have been rooting
you could have been rooting
he could have been rooting
we could have been rooting
you could have been rooting
they could have been rooting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not root
you could not root
he could not root
we could not root
you could not root
they could not root 	I could not be rooting
you could not be rooting
he could not be rooting
we could not be rooting
you could not be rooting
they could not be rooting	I could not have rooted
you could not have rooted
he could not have rooted
we could not have rooted
you could not have rooted
they could not have rooted	I could not have been rooting
you could not have been rooting
he could not have been rooting
we could not have been rooting
you could not have been rooting
they could not have been rooting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I root?
could you root?
could he root?
could we root?
could you root?
could they root? 	could I be rooting?
could you be rooting?
could he be rooting?
could we be rooting?
could you be rooting?
could they be rooting? 	could I have rooted?
could you have rooted?
could he have rooted?
could we have rooted?
could you have rooted?
could they have rooted? 	could I have been rooting?
could you have been rooting?
could he have been rooting?
could we have been rooting?
could you have been rooting?
could they have been rooting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not root?
could you not root?
could he not root?
could we not root?
could you not root?
could they not root? 	could I not be rooting?
could you not be rooting?
could he not be rooting?
could we not be rooting?
could you not be rooting?
could they not be rooting? 	could I not have rooted?
could you not have rooted?
could he not have rooted?
could we not have rooted?
could you not have rooted?
could they not have rooted? 	could I not have been rooting?
could you not have been rooting?
could he not have been rooting?
could we not have been rooting?
could you not have been rooting?
could they not have been rooting?