can ref
Verbo regolare: ref - refed- refed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can ref
you can ref
he can ref
we can ref
you can ref
they can ref 	I can be refing
you can be refing
he can be refing
we can be refing
you can be refing
they can be refing	I can have refed
you can have refed
he can have refed
we can have refed
you can have refed
they can have refed	I can have been refing
you can have been refing
he can have been refing
we can have been refing
you can have been refing
they can have been refing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can't ref
you can't ref
he can't ref
we can't ref
you can't ref
they can't ref 	I can't be refing
you can't be refing
he can't be refing
we can't be refing
you can't be refing
they can't be refing	I can't have refed
you can't have refed
he can't have refed
we can't have refed
you can't have refed
they can't have refed	I can't have been refing
you can't have been refing
he can't have been refing
we can't have been refing
you can't have been refing
they can't have been refing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I ref?
can you ref?
can he ref?
can we ref?
can you ref?
can they ref? 	can I be refing?
can you be refing?
can he be refing?
can we be refing?
can you be refing?
can they be refing? 	can I have refed?
can you have refed?
can he have refed?
can we have refed?
can you have refed?
can they have refed? 	can I have been refing?
can you have been refing?
can he have been refing?
can we have been refing?
can you have been refing?
can they have been refing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can't I ref?
can't you ref?
can't he ref?
can't we ref?
can't you ref?
can't they ref? 	can't I be refing?
can't you be refing?
can't he be refing?
can't we be refing?
can't you be refing?
can't they be refing? 	can't I have refed?
can't you have refed?
can't he have refed?
can't we have refed?
can't you have refed?
can't they have refed? 	can't I have been refing?
can't you have been refing?
can't he have been refing?
can't we have been refing?
can't you have been refing?
can't they have been refing?