could rue
Verbo regular: rue - rued- rued

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could rue
you could rue
he could rue
we could rue
you could rue
they could rue 	I could be ruing
you could be ruing
he could be ruing
we could be ruing
you could be ruing
they could be ruing	I could have rued
you could have rued
he could have rued
we could have rued
you could have rued
they could have rued	I could have been ruing
you could have been ruing
he could have been ruing
we could have been ruing
you could have been ruing
they could have been ruing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't rue
you couldn't rue
he couldn't rue
we couldn't rue
you couldn't rue
they couldn't rue 	I couldn't be ruing
you couldn't be ruing
he couldn't be ruing
we couldn't be ruing
you couldn't be ruing
they couldn't be ruing	I couldn't have rued
you couldn't have rued
he couldn't have rued
we couldn't have rued
you couldn't have rued
they couldn't have rued	I couldn't have been ruing
you couldn't have been ruing
he couldn't have been ruing
we couldn't have been ruing
you couldn't have been ruing
they couldn't have been ruing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I rue?
could you rue?
could he rue?
could we rue?
could you rue?
could they rue? 	could I be ruing?
could you be ruing?
could he be ruing?
could we be ruing?
could you be ruing?
could they be ruing? 	could I have rued?
could you have rued?
could he have rued?
could we have rued?
could you have rued?
could they have rued? 	could I have been ruing?
could you have been ruing?
could he have been ruing?
could we have been ruing?
could you have been ruing?
could they have been ruing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I rue?
couldn't you rue?
couldn't he rue?
couldn't we rue?
couldn't you rue?
couldn't they rue? 	couldn't I be ruing?
couldn't you be ruing?
couldn't he be ruing?
couldn't we be ruing?
couldn't you be ruing?
couldn't they be ruing? 	couldn't I have rued?
couldn't you have rued?
couldn't he have rued?
couldn't we have rued?
couldn't you have rued?
couldn't they have rued? 	couldn't I have been ruing?
couldn't you have been ruing?
couldn't he have been ruing?
couldn't we have been ruing?
couldn't you have been ruing?
couldn't they have been ruing?