could overrefine
Verbo regular: overrefine - overrefined- overrefined

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could overrefine
you could overrefine
she could overrefine
we could overrefine
you could overrefine
they could overrefine 	I could be overrefining
you could be overrefining
she could be overrefining
we could be overrefining
you could be overrefining
they could be overrefining	I could have overrefined
you could have overrefined
she 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
she could have been overrefining
we could have been overrefining
you could have been overrefining
they could have been overrefining	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't overrefine
you couldn't overrefine
she 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
she 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
she 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
she 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 com V-ing 	Perfeito 	Perfeito com V-ing 	
could I overrefine?
could you overrefine?
could she overrefine?
could we overrefine?
could you overrefine?
could they overrefine? 	could I be overrefining?
could you be overrefining?
could she be overrefining?
could we be overrefining?
could you be overrefining?
could they be overrefining? 	could I have overrefined?
could you have overrefined?
could she 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 she have been overrefining?
could we have been overrefining?
could you have been overrefining?
could they have been overrefining? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I overrefine?
couldn't you overrefine?
couldn't she 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 she 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 she 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 she have been overrefining?
couldn't we have been overrefining?
couldn't you have been overrefining?
couldn't they have been overrefining?