could perfect
Verbo regolare: perfect - perfected- perfected

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could perfect
you could perfect
she could perfect
we could perfect
you could perfect
they could perfect 	I could be perfecting
you could be perfecting
she could be perfecting
we could be perfecting
you could be perfecting
they could be perfecting	I could have perfected
you could have perfected
she could have perfected
we could have perfected
you could have perfected
they could have perfected	I could have been perfecting
you could have been perfecting
she could have been perfecting
we could have been perfecting
you could have been perfecting
they could have been perfecting	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not perfect
you could not perfect
she could not perfect
we could not perfect
you could not perfect
they could not perfect 	I could not be perfecting
you could not be perfecting
she could not be perfecting
we could not be perfecting
you could not be perfecting
they could not be perfecting	I could not have perfected
you could not have perfected
she could not have perfected
we could not have perfected
you could not have perfected
they could not have perfected	I could not have been perfecting
you could not have been perfecting
she could not have been perfecting
we could not have been perfecting
you could not have been perfecting
they could not have been perfecting	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I perfect?
could you perfect?
could she perfect?
could we perfect?
could you perfect?
could they perfect? 	could I be perfecting?
could you be perfecting?
could she be perfecting?
could we be perfecting?
could you be perfecting?
could they be perfecting? 	could I have perfected?
could you have perfected?
could she have perfected?
could we have perfected?
could you have perfected?
could they have perfected? 	could I have been perfecting?
could you have been perfecting?
could she have been perfecting?
could we have been perfecting?
could you have been perfecting?
could they have been perfecting? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not perfect?
could you not perfect?
could she not perfect?
could we not perfect?
could you not perfect?
could they not perfect? 	could I not be perfecting?
could you not be perfecting?
could she not be perfecting?
could we not be perfecting?
could you not be perfecting?
could they not be perfecting? 	could I not have perfected?
could you not have perfected?
could she not have perfected?
could we not have perfected?
could you not have perfected?
could they not have perfected? 	could I not have been perfecting?
could you not have been perfecting?
could she not have been perfecting?
could we not have been perfecting?
could you not have been perfecting?
could they not have been perfecting?