could overrefine
Verbo regular: overrefine - overrefined- overrefined

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could overrefine
you could overrefine
he could overrefine
we could overrefine
you could overrefine
they could overrefine 	I could be overrefining
you could be overrefining
he could be overrefining
we could be overrefining
you could be overrefining
they could be overrefining	I could have overrefined
you could have overrefined
he could have overrefined
we could have overrefined
you could have overrefined
they could have overrefined	I could have been overrefining
you could have been overrefining
he could have been overrefining
we could have been overrefining
you could have been overrefining
they could have been overrefining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't overrefine
you couldn't overrefine
he couldn't overrefine
we couldn't overrefine
you couldn't overrefine
they couldn't overrefine 	I couldn't be overrefining
you couldn't be overrefining
he couldn't be overrefining
we couldn't be overrefining
you couldn't be overrefining
they couldn't be overrefining	I couldn't have overrefined
you couldn't have overrefined
he couldn't have overrefined
we couldn't have overrefined
you couldn't have overrefined
they couldn't have overrefined	I couldn't have been overrefining
you couldn't have been overrefining
he couldn't have been overrefining
we couldn't have been overrefining
you couldn't have been overrefining
they couldn't have been overrefining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I overrefine?
could you overrefine?
could he overrefine?
could we overrefine?
could you overrefine?
could they overrefine? 	could I be overrefining?
could you be overrefining?
could he be overrefining?
could we be overrefining?
could you be overrefining?
could they be overrefining? 	could I have overrefined?
could you have overrefined?
could he have overrefined?
could we have overrefined?
could you have overrefined?
could they have overrefined? 	could I have been overrefining?
could you have been overrefining?
could he have been overrefining?
could we have been overrefining?
could you have been overrefining?
could they have been overrefining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I overrefine?
couldn't you overrefine?
couldn't he overrefine?
couldn't we overrefine?
couldn't you overrefine?
couldn't they overrefine? 	couldn't I be overrefining?
couldn't you be overrefining?
couldn't he be overrefining?
couldn't we be overrefining?
couldn't you be overrefining?
couldn't they be overrefining? 	couldn't I have overrefined?
couldn't you have overrefined?
couldn't he have overrefined?
couldn't we have overrefined?
couldn't you have overrefined?
couldn't they have overrefined? 	couldn't I have been overrefining?
couldn't you have been overrefining?
couldn't he have been overrefining?
couldn't we have been overrefining?
couldn't you have been overrefining?
couldn't they have been overrefining?