could decay
Verbo regolare: decay - decayed- decayed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could decay
you could decay
he could decay
we could decay
you could decay
they could decay 	I could be decaying
you could be decaying
he could be decaying
we could be decaying
you could be decaying
they could be decaying	I could have decayed
you could have decayed
he could have decayed
we could have decayed
you could have decayed
they could have decayed	I could have been decaying
you could have been decaying
he could have been decaying
we could have been decaying
you could have been decaying
they could have been decaying	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not decay
you could not decay
he could not decay
we could not decay
you could not decay
they could not decay 	I could not be decaying
you could not be decaying
he could not be decaying
we could not be decaying
you could not be decaying
they could not be decaying	I could not have decayed
you could not have decayed
he could not have decayed
we could not have decayed
you could not have decayed
they could not have decayed	I could not have been decaying
you could not have been decaying
he could not have been decaying
we could not have been decaying
you could not have been decaying
they could not have been decaying	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I decay?
could you decay?
could he decay?
could we decay?
could you decay?
could they decay? 	could I be decaying?
could you be decaying?
could he be decaying?
could we be decaying?
could you be decaying?
could they be decaying? 	could I have decayed?
could you have decayed?
could he have decayed?
could we have decayed?
could you have decayed?
could they have decayed? 	could I have been decaying?
could you have been decaying?
could he have been decaying?
could we have been decaying?
could you have been decaying?
could they have been decaying? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not decay?
could you not decay?
could he not decay?
could we not decay?
could you not decay?
could they not decay? 	could I not be decaying?
could you not be decaying?
could he not be decaying?
could we not be decaying?
could you not be decaying?
could they not be decaying? 	could I not have decayed?
could you not have decayed?
could he not have decayed?
could we not have decayed?
could you not have decayed?
could they not have decayed? 	could I not have been decaying?
could you not have been decaying?
could he not have been decaying?
could we not have been decaying?
could you not have been decaying?
could they not have been decaying?