could joy
Verbo regular: joy - joyed- joyed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could joy
you could joy
he could joy
we could joy
you could joy
they could joy 	I could be joying
you could be joying
he could be joying
we could be joying
you could be joying
they could be joying	I could have joyed
you could have joyed
he could have joyed
we could have joyed
you could have joyed
they could have joyed	I could have been joying
you could have been joying
he could have been joying
we could have been joying
you could have been joying
they could have been joying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not joy
you could not joy
he could not joy
we could not joy
you could not joy
they could not joy 	I could not be joying
you could not be joying
he could not be joying
we could not be joying
you could not be joying
they could not be joying	I could not have joyed
you could not have joyed
he could not have joyed
we could not have joyed
you could not have joyed
they could not have joyed	I could not have been joying
you could not have been joying
he could not have been joying
we could not have been joying
you could not have been joying
they could not have been joying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I joy?
could you joy?
could he joy?
could we joy?
could you joy?
could they joy? 	could I be joying?
could you be joying?
could he be joying?
could we be joying?
could you be joying?
could they be joying? 	could I have joyed?
could you have joyed?
could he have joyed?
could we have joyed?
could you have joyed?
could they have joyed? 	could I have been joying?
could you have been joying?
could he have been joying?
could we have been joying?
could you have been joying?
could they have been joying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not joy?
could you not joy?
could he not joy?
could we not joy?
could you not joy?
could they not joy? 	could I not be joying?
could you not be joying?
could he not be joying?
could we not be joying?
could you not be joying?
could they not be joying? 	could I not have joyed?
could you not have joyed?
could he not have joyed?
could we not have joyed?
could you not have joyed?
could they not have joyed? 	could I not have been joying?
could you not have been joying?
could he not have been joying?
could we not have been joying?
could you not have been joying?
could they not have been joying?