could quadruplicate
Verbo regular: quadruplicate - quadruplicated- quadruplicated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could quadruplicate
you could quadruplicate
he could quadruplicate
we could quadruplicate
you could quadruplicate
they could quadruplicate 	I could be quadruplicating
you could be quadruplicating
he could be quadruplicating
we could be quadruplicating
you could be quadruplicating
they could be quadruplicating	I could have quadruplicated
you could have quadruplicated
he could have quadruplicated
we could have quadruplicated
you could have quadruplicated
they could have quadruplicated	I could have been quadruplicating
you could have been quadruplicating
he could have been quadruplicating
we could have been quadruplicating
you could have been quadruplicating
they could have been quadruplicating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not quadruplicate
you could not quadruplicate
he could not quadruplicate
we could not quadruplicate
you could not quadruplicate
they could not quadruplicate 	I could not be quadruplicating
you could not be quadruplicating
he could not be quadruplicating
we could not be quadruplicating
you could not be quadruplicating
they could not be quadruplicating	I could not have quadruplicated
you could not have quadruplicated
he could not have quadruplicated
we could not have quadruplicated
you could not have quadruplicated
they could not have quadruplicated	I could not have been quadruplicating
you could not have been quadruplicating
he could not have been quadruplicating
we could not have been quadruplicating
you could not have been quadruplicating
they could not have been quadruplicating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I quadruplicate?
could you quadruplicate?
could he quadruplicate?
could we quadruplicate?
could you quadruplicate?
could they quadruplicate? 	could I be quadruplicating?
could you be quadruplicating?
could he be quadruplicating?
could we be quadruplicating?
could you be quadruplicating?
could they be quadruplicating? 	could I have quadruplicated?
could you have quadruplicated?
could he have quadruplicated?
could we have quadruplicated?
could you have quadruplicated?
could they have quadruplicated? 	could I have been quadruplicating?
could you have been quadruplicating?
could he have been quadruplicating?
could we have been quadruplicating?
could you have been quadruplicating?
could they have been quadruplicating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not quadruplicate?
could you not quadruplicate?
could he not quadruplicate?
could we not quadruplicate?
could you not quadruplicate?
could they not quadruplicate? 	could I not be quadruplicating?
could you not be quadruplicating?
could he not be quadruplicating?
could we not be quadruplicating?
could you not be quadruplicating?
could they not be quadruplicating? 	could I not have quadruplicated?
could you not have quadruplicated?
could he not have quadruplicated?
could we not have quadruplicated?
could you not have quadruplicated?
could they not have quadruplicated? 	could I not have been quadruplicating?
could you not have been quadruplicating?
could he not have been quadruplicating?
could we not have been quadruplicating?
could you not have been quadruplicating?
could they not have been quadruplicating?