could reproduce
Verbo regular: reproduce - reproduced- reproduced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could reproduce
you could reproduce
he could reproduce
we could reproduce
you could reproduce
they could reproduce 	I could be reproducing
you could be reproducing
he could be reproducing
we could be reproducing
you could be reproducing
they could be reproducing	I could have reproduced
you could have reproduced
he could have reproduced
we could have reproduced
you could have reproduced
they could have reproduced	I could have been reproducing
you could have been reproducing
he could have been reproducing
we could have been reproducing
you could have been reproducing
they could have been reproducing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't reproduce
you couldn't reproduce
he couldn't reproduce
we couldn't reproduce
you couldn't reproduce
they couldn't reproduce 	I couldn't be reproducing
you couldn't be reproducing
he couldn't be reproducing
we couldn't be reproducing
you couldn't be reproducing
they couldn't be reproducing	I couldn't have reproduced
you couldn't have reproduced
he couldn't have reproduced
we couldn't have reproduced
you couldn't have reproduced
they couldn't have reproduced	I couldn't have been reproducing
you couldn't have been reproducing
he couldn't have been reproducing
we couldn't have been reproducing
you couldn't have been reproducing
they couldn't have been reproducing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I reproduce?
could you reproduce?
could he reproduce?
could we reproduce?
could you reproduce?
could they reproduce? 	could I be reproducing?
could you be reproducing?
could he be reproducing?
could we be reproducing?
could you be reproducing?
could they be reproducing? 	could I have reproduced?
could you have reproduced?
could he have reproduced?
could we have reproduced?
could you have reproduced?
could they have reproduced? 	could I have been reproducing?
could you have been reproducing?
could he have been reproducing?
could we have been reproducing?
could you have been reproducing?
could they have been reproducing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I reproduce?
couldn't you reproduce?
couldn't he reproduce?
couldn't we reproduce?
couldn't you reproduce?
couldn't they reproduce? 	couldn't I be reproducing?
couldn't you be reproducing?
couldn't he be reproducing?
couldn't we be reproducing?
couldn't you be reproducing?
couldn't they be reproducing? 	couldn't I have reproduced?
couldn't you have reproduced?
couldn't he have reproduced?
couldn't we have reproduced?
couldn't you have reproduced?
couldn't they have reproduced? 	couldn't I have been reproducing?
couldn't you have been reproducing?
couldn't he have been reproducing?
couldn't we have been reproducing?
couldn't you have been reproducing?
couldn't they have been reproducing?