can sand
Verbo regular: sand - sanded- sanded

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can sand
you can sand
he can sand
we can sand
you can sand
they can sand 	I can be sanding
you can be sanding
he can be sanding
we can be sanding
you can be sanding
they can be sanding	I can have sanded
you can have sanded
he can have sanded
we can have sanded
you can have sanded
they can have sanded	I can have been sanding
you can have been sanding
he can have been sanding
we can have been sanding
you can have been sanding
they can have been sanding	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot sand
you cannot sand
he cannot sand
we cannot sand
you cannot sand
they cannot sand 	I cannot be sanding
you cannot be sanding
he cannot be sanding
we cannot be sanding
you cannot be sanding
they cannot be sanding	I cannot have sanded
you cannot have sanded
he cannot have sanded
we cannot have sanded
you cannot have sanded
they cannot have sanded	I cannot have been sanding
you cannot have been sanding
he cannot have been sanding
we cannot have been sanding
you cannot have been sanding
they cannot have been sanding	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I sand?
can you sand?
can he sand?
can we sand?
can you sand?
can they sand? 	can I be sanding?
can you be sanding?
can he be sanding?
can we be sanding?
can you be sanding?
can they be sanding? 	can I have sanded?
can you have sanded?
can he have sanded?
can we have sanded?
can you have sanded?
can they have sanded? 	can I have been sanding?
can you have been sanding?
can he have been sanding?
can we have been sanding?
can you have been sanding?
can they have been sanding? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not sand?
can you not sand?
can he not sand?
can we not sand?
can you not sand?
can they not sand? 	can I not be sanding?
can you not be sanding?
can he not be sanding?
can we not be sanding?
can you not be sanding?
can they not be sanding? 	can I not have sanded?
can you not have sanded?
can he not have sanded?
can we not have sanded?
can you not have sanded?
can they not have sanded? 	can I not have been sanding?
can you not have been sanding?
can he not have been sanding?
can we not have been sanding?
can you not have been sanding?
can they not have been sanding?