could underplay
Verbo regular: underplay - underplayed- underplayed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could underplay
you could underplay
he could underplay
we could underplay
you could underplay
they could underplay 	I could be underplaying
you could be underplaying
he could be underplaying
we could be underplaying
you could be underplaying
they could be underplaying	I could have underplayed
you could have underplayed
he could have underplayed
we could have underplayed
you could have underplayed
they could have underplayed	I could have been underplaying
you could have been underplaying
he could have been underplaying
we could have been underplaying
you could have been underplaying
they could have been underplaying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not underplay
you could not underplay
he could not underplay
we could not underplay
you could not underplay
they could not underplay 	I could not be underplaying
you could not be underplaying
he could not be underplaying
we could not be underplaying
you could not be underplaying
they could not be underplaying	I could not have underplayed
you could not have underplayed
he could not have underplayed
we could not have underplayed
you could not have underplayed
they could not have underplayed	I could not have been underplaying
you could not have been underplaying
he could not have been underplaying
we could not have been underplaying
you could not have been underplaying
they could not have been underplaying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I underplay?
could you underplay?
could he underplay?
could we underplay?
could you underplay?
could they underplay? 	could I be underplaying?
could you be underplaying?
could he be underplaying?
could we be underplaying?
could you be underplaying?
could they be underplaying? 	could I have underplayed?
could you have underplayed?
could he have underplayed?
could we have underplayed?
could you have underplayed?
could they have underplayed? 	could I have been underplaying?
could you have been underplaying?
could he have been underplaying?
could we have been underplaying?
could you have been underplaying?
could they have been underplaying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not underplay?
could you not underplay?
could he not underplay?
could we not underplay?
could you not underplay?
could they not underplay? 	could I not be underplaying?
could you not be underplaying?
could he not be underplaying?
could we not be underplaying?
could you not be underplaying?
could they not be underplaying? 	could I not have underplayed?
could you not have underplayed?
could he not have underplayed?
could we not have underplayed?
could you not have underplayed?
could they not have underplayed? 	could I not have been underplaying?
could you not have been underplaying?
could he not have been underplaying?
could we not have been underplaying?
could you not have been underplaying?
could they not have been underplaying?