could halloo
Verbo regular: halloo - hallooed- hallooed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could halloo
you could halloo
he could halloo
we could halloo
you could halloo
they could halloo 	I could be hallooing
you could be hallooing
he could be hallooing
we could be hallooing
you could be hallooing
they could be hallooing	I could have hallooed
you could have hallooed
he could have hallooed
we could have hallooed
you could have hallooed
they could have hallooed	I could have been hallooing
you could have been hallooing
he could have been hallooing
we could have been hallooing
you could have been hallooing
they could have been hallooing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not halloo
you could not halloo
he could not halloo
we could not halloo
you could not halloo
they could not halloo 	I could not be hallooing
you could not be hallooing
he could not be hallooing
we could not be hallooing
you could not be hallooing
they could not be hallooing	I could not have hallooed
you could not have hallooed
he could not have hallooed
we could not have hallooed
you could not have hallooed
they could not have hallooed	I could not have been hallooing
you could not have been hallooing
he could not have been hallooing
we could not have been hallooing
you could not have been hallooing
they could not have been hallooing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I halloo?
could you halloo?
could he halloo?
could we halloo?
could you halloo?
could they halloo? 	could I be hallooing?
could you be hallooing?
could he be hallooing?
could we be hallooing?
could you be hallooing?
could they be hallooing? 	could I have hallooed?
could you have hallooed?
could he have hallooed?
could we have hallooed?
could you have hallooed?
could they have hallooed? 	could I have been hallooing?
could you have been hallooing?
could he have been hallooing?
could we have been hallooing?
could you have been hallooing?
could they have been hallooing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not halloo?
could you not halloo?
could he not halloo?
could we not halloo?
could you not halloo?
could they not halloo? 	could I not be hallooing?
could you not be hallooing?
could he not be hallooing?
could we not be hallooing?
could you not be hallooing?
could they not be hallooing? 	could I not have hallooed?
could you not have hallooed?
could he not have hallooed?
could we not have hallooed?
could you not have hallooed?
could they not have hallooed? 	could I not have been hallooing?
could you not have been hallooing?
could he not have been hallooing?
could we not have been hallooing?
could you not have been hallooing?
could they not have been hallooing?