could billboard
Verbo regolare: billboard - billboarded- billboarded

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could billboard
you could billboard
he could billboard
we could billboard
you could billboard
they could billboard 	I could be billboarding
you could be billboarding
he could be billboarding
we could be billboarding
you could be billboarding
they could be billboarding	I could have billboarded
you could have billboarded
he could have billboarded
we could have billboarded
you could have billboarded
they could have billboarded	I could have been billboarding
you could have been billboarding
he could have been billboarding
we could have been billboarding
you could have been billboarding
they could have been billboarding	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not billboard
you could not billboard
he could not billboard
we could not billboard
you could not billboard
they could not billboard 	I could not be billboarding
you could not be billboarding
he could not be billboarding
we could not be billboarding
you could not be billboarding
they could not be billboarding	I could not have billboarded
you could not have billboarded
he could not have billboarded
we could not have billboarded
you could not have billboarded
they could not have billboarded	I could not have been billboarding
you could not have been billboarding
he could not have been billboarding
we could not have been billboarding
you could not have been billboarding
they could not have been billboarding	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I billboard?
could you billboard?
could he billboard?
could we billboard?
could you billboard?
could they billboard? 	could I be billboarding?
could you be billboarding?
could he be billboarding?
could we be billboarding?
could you be billboarding?
could they be billboarding? 	could I have billboarded?
could you have billboarded?
could he have billboarded?
could we have billboarded?
could you have billboarded?
could they have billboarded? 	could I have been billboarding?
could you have been billboarding?
could he have been billboarding?
could we have been billboarding?
could you have been billboarding?
could they have been billboarding? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not billboard?
could you not billboard?
could he not billboard?
could we not billboard?
could you not billboard?
could they not billboard? 	could I not be billboarding?
could you not be billboarding?
could he not be billboarding?
could we not be billboarding?
could you not be billboarding?
could they not be billboarding? 	could I not have billboarded?
could you not have billboarded?
could he not have billboarded?
could we not have billboarded?
could you not have billboarded?
could they not have billboarded? 	could I not have been billboarding?
could you not have been billboarding?
could he not have been billboarding?
could we not have been billboarding?
could you not have been billboarding?
could they not have been billboarding?