could sand
Verbo regular: sand - sanded- sanded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could sand
you could sand
he could sand
we could sand
you could sand
they could sand 	I could be sanding
you could be sanding
he could be sanding
we could be sanding
you could be sanding
they could be sanding	I could have sanded
you could have sanded
he could have sanded
we could have sanded
you could have sanded
they could have sanded	I could have been sanding
you could have been sanding
he could have been sanding
we could have been sanding
you could have been sanding
they could have been sanding	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not sand
you could not sand
he could not sand
we could not sand
you could not sand
they could not sand 	I could not be sanding
you could not be sanding
he could not be sanding
we could not be sanding
you could not be sanding
they could not be sanding	I could not have sanded
you could not have sanded
he could not have sanded
we could not have sanded
you could not have sanded
they could not have sanded	I could not have been sanding
you could not have been sanding
he could not have been sanding
we could not have been sanding
you could not have been sanding
they could not have been sanding	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I sand?
could you sand?
could he sand?
could we sand?
could you sand?
could they sand? 	could I be sanding?
could you be sanding?
could he be sanding?
could we be sanding?
could you be sanding?
could they be sanding? 	could I have sanded?
could you have sanded?
could he have sanded?
could we have sanded?
could you have sanded?
could they have sanded? 	could I have been sanding?
could you have been sanding?
could he have been sanding?
could we have been sanding?
could you have been sanding?
could they have been sanding? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not sand?
could you not sand?
could he not sand?
could we not sand?
could you not sand?
could they not sand? 	could I not be sanding?
could you not be sanding?
could he not be sanding?
could we not be sanding?
could you not be sanding?
could they not be sanding? 	could I not have sanded?
could you not have sanded?
could he not have sanded?
could we not have sanded?
could you not have sanded?
could they not have sanded? 	could I not have been sanding?
could you not have been sanding?
could he not have been sanding?
could we not have been sanding?
could you not have been sanding?
could they not have been sanding?