could modernize
Verbo regular: modernize - modernized- modernized

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could modernize
you could modernize
he could modernize
we could modernize
you could modernize
they could modernize 	I could be modernizing
you could be modernizing
he could be modernizing
we could be modernizing
you could be modernizing
they could be modernizing	I could have modernized
you could have modernized
he could have modernized
we could have modernized
you could have modernized
they could have modernized	I could have been modernizing
you could have been modernizing
he could have been modernizing
we could have been modernizing
you could have been modernizing
they could have been modernizing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not modernize
you could not modernize
he could not modernize
we could not modernize
you could not modernize
they could not modernize 	I could not be modernizing
you could not be modernizing
he could not be modernizing
we could not be modernizing
you could not be modernizing
they could not be modernizing	I could not have modernized
you could not have modernized
he could not have modernized
we could not have modernized
you could not have modernized
they could not have modernized	I could not have been modernizing
you could not have been modernizing
he could not have been modernizing
we could not have been modernizing
you could not have been modernizing
they could not have been modernizing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I modernize?
could you modernize?
could he modernize?
could we modernize?
could you modernize?
could they modernize? 	could I be modernizing?
could you be modernizing?
could he be modernizing?
could we be modernizing?
could you be modernizing?
could they be modernizing? 	could I have modernized?
could you have modernized?
could he have modernized?
could we have modernized?
could you have modernized?
could they have modernized? 	could I have been modernizing?
could you have been modernizing?
could he have been modernizing?
could we have been modernizing?
could you have been modernizing?
could they have been modernizing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not modernize?
could you not modernize?
could he not modernize?
could we not modernize?
could you not modernize?
could they not modernize? 	could I not be modernizing?
could you not be modernizing?
could he not be modernizing?
could we not be modernizing?
could you not be modernizing?
could they not be modernizing? 	could I not have modernized?
could you not have modernized?
could he not have modernized?
could we not have modernized?
could you not have modernized?
could they not have modernized? 	could I not have been modernizing?
could you not have been modernizing?
could he not have been modernizing?
could we not have been modernizing?
could you not have been modernizing?
could they not have been modernizing?