could prefix
Verbo regolare: prefix - prefixed- prefixed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could prefix
you could prefix
he could prefix
we could prefix
you could prefix
they could prefix 	I could be prefixing
you could be prefixing
he could be prefixing
we could be prefixing
you could be prefixing
they could be prefixing	I could have prefixed
you could have prefixed
he could have prefixed
we could have prefixed
you could have prefixed
they could have prefixed	I could have been prefixing
you could have been prefixing
he could have been prefixing
we could have been prefixing
you could have been prefixing
they could have been prefixing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't prefix
you couldn't prefix
he couldn't prefix
we couldn't prefix
you couldn't prefix
they couldn't prefix 	I couldn't be prefixing
you couldn't be prefixing
he couldn't be prefixing
we couldn't be prefixing
you couldn't be prefixing
they couldn't be prefixing	I couldn't have prefixed
you couldn't have prefixed
he couldn't have prefixed
we couldn't have prefixed
you couldn't have prefixed
they couldn't have prefixed	I couldn't have been prefixing
you couldn't have been prefixing
he couldn't have been prefixing
we couldn't have been prefixing
you couldn't have been prefixing
they couldn't have been prefixing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I prefix?
could you prefix?
could he prefix?
could we prefix?
could you prefix?
could they prefix? 	could I be prefixing?
could you be prefixing?
could he be prefixing?
could we be prefixing?
could you be prefixing?
could they be prefixing? 	could I have prefixed?
could you have prefixed?
could he have prefixed?
could we have prefixed?
could you have prefixed?
could they have prefixed? 	could I have been prefixing?
could you have been prefixing?
could he have been prefixing?
could we have been prefixing?
could you have been prefixing?
could they have been prefixing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I prefix?
couldn't you prefix?
couldn't he prefix?
couldn't we prefix?
couldn't you prefix?
couldn't they prefix? 	couldn't I be prefixing?
couldn't you be prefixing?
couldn't he be prefixing?
couldn't we be prefixing?
couldn't you be prefixing?
couldn't they be prefixing? 	couldn't I have prefixed?
couldn't you have prefixed?
couldn't he have prefixed?
couldn't we have prefixed?
couldn't you have prefixed?
couldn't they have prefixed? 	couldn't I have been prefixing?
couldn't you have been prefixing?
couldn't he have been prefixing?
couldn't we have been prefixing?
couldn't you have been prefixing?
couldn't they have been prefixing?