could sterilize
Verbo regolare: sterilize - sterilized- sterilized

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could sterilize
you could sterilize
he could sterilize
we could sterilize
you could sterilize
they could sterilize 	I could be sterilizing
you could be sterilizing
he could be sterilizing
we could be sterilizing
you could be sterilizing
they could be sterilizing	I could have sterilized
you could have sterilized
he could have sterilized
we could have sterilized
you could have sterilized
they could have sterilized	I could have been sterilizing
you could have been sterilizing
he could have been sterilizing
we could have been sterilizing
you could have been sterilizing
they could have been sterilizing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not sterilize
you could not sterilize
he could not sterilize
we could not sterilize
you could not sterilize
they could not sterilize 	I could not be sterilizing
you could not be sterilizing
he could not be sterilizing
we could not be sterilizing
you could not be sterilizing
they could not be sterilizing	I could not have sterilized
you could not have sterilized
he could not have sterilized
we could not have sterilized
you could not have sterilized
they could not have sterilized	I could not have been sterilizing
you could not have been sterilizing
he could not have been sterilizing
we could not have been sterilizing
you could not have been sterilizing
they could not have been sterilizing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I sterilize?
could you sterilize?
could he sterilize?
could we sterilize?
could you sterilize?
could they sterilize? 	could I be sterilizing?
could you be sterilizing?
could he be sterilizing?
could we be sterilizing?
could you be sterilizing?
could they be sterilizing? 	could I have sterilized?
could you have sterilized?
could he have sterilized?
could we have sterilized?
could you have sterilized?
could they have sterilized? 	could I have been sterilizing?
could you have been sterilizing?
could he have been sterilizing?
could we have been sterilizing?
could you have been sterilizing?
could they have been sterilizing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not sterilize?
could you not sterilize?
could he not sterilize?
could we not sterilize?
could you not sterilize?
could they not sterilize? 	could I not be sterilizing?
could you not be sterilizing?
could he not be sterilizing?
could we not be sterilizing?
could you not be sterilizing?
could they not be sterilizing? 	could I not have sterilized?
could you not have sterilized?
could he not have sterilized?
could we not have sterilized?
could you not have sterilized?
could they not have sterilized? 	could I not have been sterilizing?
could you not have been sterilizing?
could he not have been sterilizing?
could we not have been sterilizing?
could you not have been sterilizing?
could they not have been sterilizing?