could spearfish
Verbo regular: spearfish - spearfished- spearfished

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could spearfish
you could spearfish
he could spearfish
we could spearfish
you could spearfish
they could spearfish 	I could be spearfishing
you could be spearfishing
he could be spearfishing
we could be spearfishing
you could be spearfishing
they could be spearfishing	I could have spearfished
you could have spearfished
he could have spearfished
we could have spearfished
you could have spearfished
they could have spearfished	I could have been spearfishing
you could have been spearfishing
he could have been spearfishing
we could have been spearfishing
you could have been spearfishing
they could have been spearfishing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not spearfish
you could not spearfish
he could not spearfish
we could not spearfish
you could not spearfish
they could not spearfish 	I could not be spearfishing
you could not be spearfishing
he could not be spearfishing
we could not be spearfishing
you could not be spearfishing
they could not be spearfishing	I could not have spearfished
you could not have spearfished
he could not have spearfished
we could not have spearfished
you could not have spearfished
they could not have spearfished	I could not have been spearfishing
you could not have been spearfishing
he could not have been spearfishing
we could not have been spearfishing
you could not have been spearfishing
they could not have been spearfishing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I spearfish?
could you spearfish?
could he spearfish?
could we spearfish?
could you spearfish?
could they spearfish? 	could I be spearfishing?
could you be spearfishing?
could he be spearfishing?
could we be spearfishing?
could you be spearfishing?
could they be spearfishing? 	could I have spearfished?
could you have spearfished?
could he have spearfished?
could we have spearfished?
could you have spearfished?
could they have spearfished? 	could I have been spearfishing?
could you have been spearfishing?
could he have been spearfishing?
could we have been spearfishing?
could you have been spearfishing?
could they have been spearfishing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not spearfish?
could you not spearfish?
could he not spearfish?
could we not spearfish?
could you not spearfish?
could they not spearfish? 	could I not be spearfishing?
could you not be spearfishing?
could he not be spearfishing?
could we not be spearfishing?
could you not be spearfishing?
could they not be spearfishing? 	could I not have spearfished?
could you not have spearfished?
could he not have spearfished?
could we not have spearfished?
could you not have spearfished?
could they not have spearfished? 	could I not have been spearfishing?
could you not have been spearfishing?
could he not have been spearfishing?
could we not have been spearfishing?
could you not have been spearfishing?
could they not have been spearfishing?