could bur
Verbo regolare: bur - bured- bured

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could bur
you could bur
she could bur
we could bur
you could bur
they could bur 	I could be buring
you could be buring
she could be buring
we could be buring
you could be buring
they could be buring	I could have bured
you could have bured
she could have bured
we could have bured
you could have bured
they could have bured	I could have been buring
you could have been buring
she could have been buring
we could have been buring
you could have been buring
they could have been buring	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not bur
you could not bur
she could not bur
we could not bur
you could not bur
they could not bur 	I could not be buring
you could not be buring
she could not be buring
we could not be buring
you could not be buring
they could not be buring	I could not have bured
you could not have bured
she could not have bured
we could not have bured
you could not have bured
they could not have bured	I could not have been buring
you could not have been buring
she could not have been buring
we could not have been buring
you could not have been buring
they could not have been buring	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I bur?
could you bur?
could she bur?
could we bur?
could you bur?
could they bur? 	could I be buring?
could you be buring?
could she be buring?
could we be buring?
could you be buring?
could they be buring? 	could I have bured?
could you have bured?
could she have bured?
could we have bured?
could you have bured?
could they have bured? 	could I have been buring?
could you have been buring?
could she have been buring?
could we have been buring?
could you have been buring?
could they have been buring? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not bur?
could you not bur?
could she not bur?
could we not bur?
could you not bur?
could they not bur? 	could I not be buring?
could you not be buring?
could she not be buring?
could we not be buring?
could you not be buring?
could they not be buring? 	could I not have bured?
could you not have bured?
could she not have bured?
could we not have bured?
could you not have bured?
could they not have bured? 	could I not have been buring?
could you not have been buring?
could she not have been buring?
could we not have been buring?
could you not have been buring?
could they not have been buring?