could threaten
Verbo regolare: threaten - threatened- threatened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could threaten
you could threaten
he could threaten
we could threaten
you could threaten
they could threaten 	I could be threatening
you could be threatening
he could be threatening
we could be threatening
you could be threatening
they could be threatening	I could have threatened
you could have threatened
he could have threatened
we could have threatened
you could have threatened
they could have threatened	I could have been threatening
you could have been threatening
he could have been threatening
we could have been threatening
you could have been threatening
they could have been threatening	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not threaten
you could not threaten
he could not threaten
we could not threaten
you could not threaten
they could not threaten 	I could not be threatening
you could not be threatening
he could not be threatening
we could not be threatening
you could not be threatening
they could not be threatening	I could not have threatened
you could not have threatened
he could not have threatened
we could not have threatened
you could not have threatened
they could not have threatened	I could not have been threatening
you could not have been threatening
he could not have been threatening
we could not have been threatening
you could not have been threatening
they could not have been threatening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I threaten?
could you threaten?
could he threaten?
could we threaten?
could you threaten?
could they threaten? 	could I be threatening?
could you be threatening?
could he be threatening?
could we be threatening?
could you be threatening?
could they be threatening? 	could I have threatened?
could you have threatened?
could he have threatened?
could we have threatened?
could you have threatened?
could they have threatened? 	could I have been threatening?
could you have been threatening?
could he have been threatening?
could we have been threatening?
could you have been threatening?
could they have been threatening? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not threaten?
could you not threaten?
could he not threaten?
could we not threaten?
could you not threaten?
could they not threaten? 	could I not be threatening?
could you not be threatening?
could he not be threatening?
could we not be threatening?
could you not be threatening?
could they not be threatening? 	could I not have threatened?
could you not have threatened?
could he not have threatened?
could we not have threatened?
could you not have threatened?
could they not have threatened? 	could I not have been threatening?
could you not have been threatening?
could he not have been threatening?
could we not have been threatening?
could you not have been threatening?
could they not have been threatening?