could knurl
Verbo regular: knurl - knurled- knurled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could knurl
you could knurl
he could knurl
we could knurl
you could knurl
they could knurl 	I could be knurling
you could be knurling
he could be knurling
we could be knurling
you could be knurling
they could be knurling	I could have knurled
you could have knurled
he could have knurled
we could have knurled
you could have knurled
they could have knurled	I could have been knurling
you could have been knurling
he could have been knurling
we could have been knurling
you could have been knurling
they could have been knurling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not knurl
you could not knurl
he could not knurl
we could not knurl
you could not knurl
they could not knurl 	I could not be knurling
you could not be knurling
he could not be knurling
we could not be knurling
you could not be knurling
they could not be knurling	I could not have knurled
you could not have knurled
he could not have knurled
we could not have knurled
you could not have knurled
they could not have knurled	I could not have been knurling
you could not have been knurling
he could not have been knurling
we could not have been knurling
you could not have been knurling
they could not have been knurling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I knurl?
could you knurl?
could he knurl?
could we knurl?
could you knurl?
could they knurl? 	could I be knurling?
could you be knurling?
could he be knurling?
could we be knurling?
could you be knurling?
could they be knurling? 	could I have knurled?
could you have knurled?
could he have knurled?
could we have knurled?
could you have knurled?
could they have knurled? 	could I have been knurling?
could you have been knurling?
could he have been knurling?
could we have been knurling?
could you have been knurling?
could they have been knurling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not knurl?
could you not knurl?
could he not knurl?
could we not knurl?
could you not knurl?
could they not knurl? 	could I not be knurling?
could you not be knurling?
could he not be knurling?
could we not be knurling?
could you not be knurling?
could they not be knurling? 	could I not have knurled?
could you not have knurled?
could he not have knurled?
could we not have knurled?
could you not have knurled?
could they not have knurled? 	could I not have been knurling?
could you not have been knurling?
could he not have been knurling?
could we not have been knurling?
could you not have been knurling?
could they not have been knurling?