could refund
Verbo regular: refund - refunded- refunded

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could refund
you could refund
she could refund
we could refund
you could refund
they could refund 	I could be refunding
you could be refunding
she could be refunding
we could be refunding
you could be refunding
they could be refunding	I could have refunded
you could have refunded
she could have refunded
we could have refunded
you could have refunded
they could have refunded	I could have been refunding
you could have been refunding
she could have been refunding
we could have been refunding
you could have been refunding
they could have been refunding	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not refund
you could not refund
she could not refund
we could not refund
you could not refund
they could not refund 	I could not be refunding
you could not be refunding
she could not be refunding
we could not be refunding
you could not be refunding
they could not be refunding	I could not have refunded
you could not have refunded
she could not have refunded
we could not have refunded
you could not have refunded
they could not have refunded	I could not have been refunding
you could not have been refunding
she could not have been refunding
we could not have been refunding
you could not have been refunding
they could not have been refunding	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I refund?
could you refund?
could she refund?
could we refund?
could you refund?
could they refund? 	could I be refunding?
could you be refunding?
could she be refunding?
could we be refunding?
could you be refunding?
could they be refunding? 	could I have refunded?
could you have refunded?
could she have refunded?
could we have refunded?
could you have refunded?
could they have refunded? 	could I have been refunding?
could you have been refunding?
could she have been refunding?
could we have been refunding?
could you have been refunding?
could they have been refunding? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not refund?
could you not refund?
could she not refund?
could we not refund?
could you not refund?
could they not refund? 	could I not be refunding?
could you not be refunding?
could she not be refunding?
could we not be refunding?
could you not be refunding?
could they not be refunding? 	could I not have refunded?
could you not have refunded?
could she not have refunded?
could we not have refunded?
could you not have refunded?
could they not have refunded? 	could I not have been refunding?
could you not have been refunding?
could she not have been refunding?
could we not have been refunding?
could you not have been refunding?
could they not have been refunding?