could buzz
Verbo regolare: buzz - buzzed- buzzed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could buzz
you could buzz
he could buzz
we could buzz
you could buzz
they could buzz 	I could be buzzing
you could be buzzing
he could be buzzing
we could be buzzing
you could be buzzing
they could be buzzing	I could have buzzed
you could have buzzed
he could have buzzed
we could have buzzed
you could have buzzed
they could have buzzed	I could have been buzzing
you could have been buzzing
he could have been buzzing
we could have been buzzing
you could have been buzzing
they could have been buzzing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't buzz
you couldn't buzz
he couldn't buzz
we couldn't buzz
you couldn't buzz
they couldn't buzz 	I couldn't be buzzing
you couldn't be buzzing
he couldn't be buzzing
we couldn't be buzzing
you couldn't be buzzing
they couldn't be buzzing	I couldn't have buzzed
you couldn't have buzzed
he couldn't have buzzed
we couldn't have buzzed
you couldn't have buzzed
they couldn't have buzzed	I couldn't have been buzzing
you couldn't have been buzzing
he couldn't have been buzzing
we couldn't have been buzzing
you couldn't have been buzzing
they couldn't have been buzzing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I buzz?
could you buzz?
could he buzz?
could we buzz?
could you buzz?
could they buzz? 	could I be buzzing?
could you be buzzing?
could he be buzzing?
could we be buzzing?
could you be buzzing?
could they be buzzing? 	could I have buzzed?
could you have buzzed?
could he have buzzed?
could we have buzzed?
could you have buzzed?
could they have buzzed? 	could I have been buzzing?
could you have been buzzing?
could he have been buzzing?
could we have been buzzing?
could you have been buzzing?
could they have been buzzing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I buzz?
couldn't you buzz?
couldn't he buzz?
couldn't we buzz?
couldn't you buzz?
couldn't they buzz? 	couldn't I be buzzing?
couldn't you be buzzing?
couldn't he be buzzing?
couldn't we be buzzing?
couldn't you be buzzing?
couldn't they be buzzing? 	couldn't I have buzzed?
couldn't you have buzzed?
couldn't he have buzzed?
couldn't we have buzzed?
couldn't you have buzzed?
couldn't they have buzzed? 	couldn't I have been buzzing?
couldn't you have been buzzing?
couldn't he have been buzzing?
couldn't we have been buzzing?
couldn't you have been buzzing?
couldn't they have been buzzing?