could underact
Verbo regular: underact - underacted- underacted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could underact
you could underact
he could underact
we could underact
you could underact
they could underact 	I could be underacting
you could be underacting
he could be underacting
we could be underacting
you could be underacting
they could be underacting	I could have underacted
you could have underacted
he could have underacted
we could have underacted
you could have underacted
they could have underacted	I could have been underacting
you could have been underacting
he could have been underacting
we could have been underacting
you could have been underacting
they could have been underacting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't underact
you couldn't underact
he couldn't underact
we couldn't underact
you couldn't underact
they couldn't underact 	I couldn't be underacting
you couldn't be underacting
he couldn't be underacting
we couldn't be underacting
you couldn't be underacting
they couldn't be underacting	I couldn't have underacted
you couldn't have underacted
he couldn't have underacted
we couldn't have underacted
you couldn't have underacted
they couldn't have underacted	I couldn't have been underacting
you couldn't have been underacting
he couldn't have been underacting
we couldn't have been underacting
you couldn't have been underacting
they couldn't have been underacting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I underact?
could you underact?
could he underact?
could we underact?
could you underact?
could they underact? 	could I be underacting?
could you be underacting?
could he be underacting?
could we be underacting?
could you be underacting?
could they be underacting? 	could I have underacted?
could you have underacted?
could he have underacted?
could we have underacted?
could you have underacted?
could they have underacted? 	could I have been underacting?
could you have been underacting?
could he have been underacting?
could we have been underacting?
could you have been underacting?
could they have been underacting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I underact?
couldn't you underact?
couldn't he underact?
couldn't we underact?
couldn't you underact?
couldn't they underact? 	couldn't I be underacting?
couldn't you be underacting?
couldn't he be underacting?
couldn't we be underacting?
couldn't you be underacting?
couldn't they be underacting? 	couldn't I have underacted?
couldn't you have underacted?
couldn't he have underacted?
couldn't we have underacted?
couldn't you have underacted?
couldn't they have underacted? 	couldn't I have been underacting?
couldn't you have been underacting?
couldn't he have been underacting?
couldn't we have been underacting?
couldn't you have been underacting?
couldn't they have been underacting?