could pumice
Verbo regular: pumice - pumiced- pumiced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could pumice
you could pumice
he could pumice
we could pumice
you could pumice
they could pumice 	I could be pumicing
you could be pumicing
he could be pumicing
we could be pumicing
you could be pumicing
they could be pumicing	I could have pumiced
you could have pumiced
he could have pumiced
we could have pumiced
you could have pumiced
they could have pumiced	I could have been pumicing
you could have been pumicing
he could have been pumicing
we could have been pumicing
you could have been pumicing
they could have been pumicing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not pumice
you could not pumice
he could not pumice
we could not pumice
you could not pumice
they could not pumice 	I could not be pumicing
you could not be pumicing
he could not be pumicing
we could not be pumicing
you could not be pumicing
they could not be pumicing	I could not have pumiced
you could not have pumiced
he could not have pumiced
we could not have pumiced
you could not have pumiced
they could not have pumiced	I could not have been pumicing
you could not have been pumicing
he could not have been pumicing
we could not have been pumicing
you could not have been pumicing
they could not have been pumicing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I pumice?
could you pumice?
could he pumice?
could we pumice?
could you pumice?
could they pumice? 	could I be pumicing?
could you be pumicing?
could he be pumicing?
could we be pumicing?
could you be pumicing?
could they be pumicing? 	could I have pumiced?
could you have pumiced?
could he have pumiced?
could we have pumiced?
could you have pumiced?
could they have pumiced? 	could I have been pumicing?
could you have been pumicing?
could he have been pumicing?
could we have been pumicing?
could you have been pumicing?
could they have been pumicing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not pumice?
could you not pumice?
could he not pumice?
could we not pumice?
could you not pumice?
could they not pumice? 	could I not be pumicing?
could you not be pumicing?
could he not be pumicing?
could we not be pumicing?
could you not be pumicing?
could they not be pumicing? 	could I not have pumiced?
could you not have pumiced?
could he not have pumiced?
could we not have pumiced?
could you not have pumiced?
could they not have pumiced? 	could I not have been pumicing?
could you not have been pumicing?
could he not have been pumicing?
could we not have been pumicing?
could you not have been pumicing?
could they not have been pumicing?