could scintillate
Verbo regular: scintillate - scintillated- scintillated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could scintillate
you could scintillate
she could scintillate
we could scintillate
you could scintillate
they could scintillate 	I could be scintillating
you could be scintillating
she could be scintillating
we could be scintillating
you could be scintillating
they could be scintillating	I could have scintillated
you could have scintillated
she could have scintillated
we could have scintillated
you could have scintillated
they could have scintillated	I could have been scintillating
you could have been scintillating
she could have been scintillating
we could have been scintillating
you could have been scintillating
they could have been scintillating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not scintillate
you could not scintillate
she could not scintillate
we could not scintillate
you could not scintillate
they could not scintillate 	I could not be scintillating
you could not be scintillating
she could not be scintillating
we could not be scintillating
you could not be scintillating
they could not be scintillating	I could not have scintillated
you could not have scintillated
she could not have scintillated
we could not have scintillated
you could not have scintillated
they could not have scintillated	I could not have been scintillating
you could not have been scintillating
she could not have been scintillating
we could not have been scintillating
you could not have been scintillating
they could not have been scintillating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I scintillate?
could you scintillate?
could she scintillate?
could we scintillate?
could you scintillate?
could they scintillate? 	could I be scintillating?
could you be scintillating?
could she be scintillating?
could we be scintillating?
could you be scintillating?
could they be scintillating? 	could I have scintillated?
could you have scintillated?
could she have scintillated?
could we have scintillated?
could you have scintillated?
could they have scintillated? 	could I have been scintillating?
could you have been scintillating?
could she have been scintillating?
could we have been scintillating?
could you have been scintillating?
could they have been scintillating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not scintillate?
could you not scintillate?
could she not scintillate?
could we not scintillate?
could you not scintillate?
could they not scintillate? 	could I not be scintillating?
could you not be scintillating?
could she not be scintillating?
could we not be scintillating?
could you not be scintillating?
could they not be scintillating? 	could I not have scintillated?
could you not have scintillated?
could she not have scintillated?
could we not have scintillated?
could you not have scintillated?
could they not have scintillated? 	could I not have been scintillating?
could you not have been scintillating?
could she not have been scintillating?
could we not have been scintillating?
could you not have been scintillating?
could they not have been scintillating?