could underproduce
Verbo regular: underproduce - underproduced- underproduced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could underproduce
you could underproduce
he could underproduce
we could underproduce
you could underproduce
they could underproduce 	I could be underproducing
you could be underproducing
he could be underproducing
we could be underproducing
you could be underproducing
they could be underproducing	I could have underproduced
you could have underproduced
he could have underproduced
we could have underproduced
you could have underproduced
they could have underproduced	I could have been underproducing
you could have been underproducing
he could have been underproducing
we could have been underproducing
you could have been underproducing
they could have been underproducing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not underproduce
you could not underproduce
he could not underproduce
we could not underproduce
you could not underproduce
they could not underproduce 	I could not be underproducing
you could not be underproducing
he could not be underproducing
we could not be underproducing
you could not be underproducing
they could not be underproducing	I could not have underproduced
you could not have underproduced
he could not have underproduced
we could not have underproduced
you could not have underproduced
they could not have underproduced	I could not have been underproducing
you could not have been underproducing
he could not have been underproducing
we could not have been underproducing
you could not have been underproducing
they could not have been underproducing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I underproduce?
could you underproduce?
could he underproduce?
could we underproduce?
could you underproduce?
could they underproduce? 	could I be underproducing?
could you be underproducing?
could he be underproducing?
could we be underproducing?
could you be underproducing?
could they be underproducing? 	could I have underproduced?
could you have underproduced?
could he have underproduced?
could we have underproduced?
could you have underproduced?
could they have underproduced? 	could I have been underproducing?
could you have been underproducing?
could he have been underproducing?
could we have been underproducing?
could you have been underproducing?
could they have been underproducing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not underproduce?
could you not underproduce?
could he not underproduce?
could we not underproduce?
could you not underproduce?
could they not underproduce? 	could I not be underproducing?
could you not be underproducing?
could he not be underproducing?
could we not be underproducing?
could you not be underproducing?
could they not be underproducing? 	could I not have underproduced?
could you not have underproduced?
could he not have underproduced?
could we not have underproduced?
could you not have underproduced?
could they not have underproduced? 	could I not have been underproducing?
could you not have been underproducing?
could he not have been underproducing?
could we not have been underproducing?
could you not have been underproducing?
could they not have been underproducing?