could replace
Verbo regular: replace - replaced- replaced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could replace
you could replace
she could replace
we could replace
you could replace
they could replace 	I could be replacing
you could be replacing
she could be replacing
we could be replacing
you could be replacing
they could be replacing	I could have replaced
you could have replaced
she could have replaced
we could have replaced
you could have replaced
they could have replaced	I could have been replacing
you could have been replacing
she could have been replacing
we could have been replacing
you could have been replacing
they could have been replacing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not replace
you could not replace
she could not replace
we could not replace
you could not replace
they could not replace 	I could not be replacing
you could not be replacing
she could not be replacing
we could not be replacing
you could not be replacing
they could not be replacing	I could not have replaced
you could not have replaced
she could not have replaced
we could not have replaced
you could not have replaced
they could not have replaced	I could not have been replacing
you could not have been replacing
she could not have been replacing
we could not have been replacing
you could not have been replacing
they could not have been replacing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I replace?
could you replace?
could she replace?
could we replace?
could you replace?
could they replace? 	could I be replacing?
could you be replacing?
could she be replacing?
could we be replacing?
could you be replacing?
could they be replacing? 	could I have replaced?
could you have replaced?
could she have replaced?
could we have replaced?
could you have replaced?
could they have replaced? 	could I have been replacing?
could you have been replacing?
could she have been replacing?
could we have been replacing?
could you have been replacing?
could they have been replacing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not replace?
could you not replace?
could she not replace?
could we not replace?
could you not replace?
could they not replace? 	could I not be replacing?
could you not be replacing?
could she not be replacing?
could we not be replacing?
could you not be replacing?
could they not be replacing? 	could I not have replaced?
could you not have replaced?
could she not have replaced?
could we not have replaced?
could you not have replaced?
could they not have replaced? 	could I not have been replacing?
could you not have been replacing?
could she not have been replacing?
could we not have been replacing?
could you not have been replacing?
could they not have been replacing?