could centralize
Verbo regular: centralize - centralized- centralized

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could centralize
you could centralize
she could centralize
we could centralize
you could centralize
they could centralize 	I could be centralizing
you could be centralizing
she could be centralizing
we could be centralizing
you could be centralizing
they could be centralizing	I could have centralized
you could have centralized
she could have centralized
we could have centralized
you could have centralized
they could have centralized	I could have been centralizing
you could have been centralizing
she could have been centralizing
we could have been centralizing
you could have been centralizing
they could have been centralizing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not centralize
you could not centralize
she could not centralize
we could not centralize
you could not centralize
they could not centralize 	I could not be centralizing
you could not be centralizing
she could not be centralizing
we could not be centralizing
you could not be centralizing
they could not be centralizing	I could not have centralized
you could not have centralized
she could not have centralized
we could not have centralized
you could not have centralized
they could not have centralized	I could not have been centralizing
you could not have been centralizing
she could not have been centralizing
we could not have been centralizing
you could not have been centralizing
they could not have been centralizing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I centralize?
could you centralize?
could she centralize?
could we centralize?
could you centralize?
could they centralize? 	could I be centralizing?
could you be centralizing?
could she be centralizing?
could we be centralizing?
could you be centralizing?
could they be centralizing? 	could I have centralized?
could you have centralized?
could she have centralized?
could we have centralized?
could you have centralized?
could they have centralized? 	could I have been centralizing?
could you have been centralizing?
could she have been centralizing?
could we have been centralizing?
could you have been centralizing?
could they have been centralizing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not centralize?
could you not centralize?
could she not centralize?
could we not centralize?
could you not centralize?
could they not centralize? 	could I not be centralizing?
could you not be centralizing?
could she not be centralizing?
could we not be centralizing?
could you not be centralizing?
could they not be centralizing? 	could I not have centralized?
could you not have centralized?
could she not have centralized?
could we not have centralized?
could you not have centralized?
could they not have centralized? 	could I not have been centralizing?
could you not have been centralizing?
could she not have been centralizing?
could we not have been centralizing?
could you not have been centralizing?
could they not have been centralizing?