could revolve
Verbo regular: revolve - revolved- revolved

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could revolve
you could revolve
he could revolve
we could revolve
you could revolve
they could revolve 	I could be revolving
you could be revolving
he could be revolving
we could be revolving
you could be revolving
they could be revolving	I could have revolved
you could have revolved
he could have revolved
we could have revolved
you could have revolved
they could have revolved	I could have been revolving
you could have been revolving
he could have been revolving
we could have been revolving
you could have been revolving
they could have been revolving	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not revolve
you could not revolve
he could not revolve
we could not revolve
you could not revolve
they could not revolve 	I could not be revolving
you could not be revolving
he could not be revolving
we could not be revolving
you could not be revolving
they could not be revolving	I could not have revolved
you could not have revolved
he could not have revolved
we could not have revolved
you could not have revolved
they could not have revolved	I could not have been revolving
you could not have been revolving
he could not have been revolving
we could not have been revolving
you could not have been revolving
they could not have been revolving	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I revolve?
could you revolve?
could he revolve?
could we revolve?
could you revolve?
could they revolve? 	could I be revolving?
could you be revolving?
could he be revolving?
could we be revolving?
could you be revolving?
could they be revolving? 	could I have revolved?
could you have revolved?
could he have revolved?
could we have revolved?
could you have revolved?
could they have revolved? 	could I have been revolving?
could you have been revolving?
could he have been revolving?
could we have been revolving?
could you have been revolving?
could they have been revolving? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not revolve?
could you not revolve?
could he not revolve?
could we not revolve?
could you not revolve?
could they not revolve? 	could I not be revolving?
could you not be revolving?
could he not be revolving?
could we not be revolving?
could you not be revolving?
could they not be revolving? 	could I not have revolved?
could you not have revolved?
could he not have revolved?
could we not have revolved?
could you not have revolved?
could they not have revolved? 	could I not have been revolving?
could you not have been revolving?
could he not have been revolving?
could we not have been revolving?
could you not have been revolving?
could they not have been revolving?