could unbox
Verbo regolare: unbox - unboxed- unboxed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could unbox
you could unbox
he could unbox
we could unbox
you could unbox
they could unbox 	I could be unboxing
you could be unboxing
he could be unboxing
we could be unboxing
you could be unboxing
they could be unboxing	I could have unboxed
you could have unboxed
he could have unboxed
we could have unboxed
you could have unboxed
they could have unboxed	I could have been unboxing
you could have been unboxing
he could have been unboxing
we could have been unboxing
you could have been unboxing
they could have been unboxing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not unbox
you could not unbox
he could not unbox
we could not unbox
you could not unbox
they could not unbox 	I could not be unboxing
you could not be unboxing
he could not be unboxing
we could not be unboxing
you could not be unboxing
they could not be unboxing	I could not have unboxed
you could not have unboxed
he could not have unboxed
we could not have unboxed
you could not have unboxed
they could not have unboxed	I could not have been unboxing
you could not have been unboxing
he could not have been unboxing
we could not have been unboxing
you could not have been unboxing
they could not have been unboxing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I unbox?
could you unbox?
could he unbox?
could we unbox?
could you unbox?
could they unbox? 	could I be unboxing?
could you be unboxing?
could he be unboxing?
could we be unboxing?
could you be unboxing?
could they be unboxing? 	could I have unboxed?
could you have unboxed?
could he have unboxed?
could we have unboxed?
could you have unboxed?
could they have unboxed? 	could I have been unboxing?
could you have been unboxing?
could he have been unboxing?
could we have been unboxing?
could you have been unboxing?
could they have been unboxing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not unbox?
could you not unbox?
could he not unbox?
could we not unbox?
could you not unbox?
could they not unbox? 	could I not be unboxing?
could you not be unboxing?
could he not be unboxing?
could we not be unboxing?
could you not be unboxing?
could they not be unboxing? 	could I not have unboxed?
could you not have unboxed?
could he not have unboxed?
could we not have unboxed?
could you not have unboxed?
could they not have unboxed? 	could I not have been unboxing?
could you not have been unboxing?
could he not have been unboxing?
could we not have been unboxing?
could you not have been unboxing?
could they not have been unboxing?