could stud
Verbo regolare: stud - studded- studded

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could stud
you could stud
she could stud
we could stud
you could stud
they could stud 	I could be studding
you could be studding
she could be studding
we could be studding
you could be studding
they could be studding	I could have studded
you could have studded
she could have studded
we could have studded
you could have studded
they could have studded	I could have been studding
you could have been studding
she could have been studding
we could have been studding
you could have been studding
they could have been studding	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not stud
you could not stud
she could not stud
we could not stud
you could not stud
they could not stud 	I could not be studding
you could not be studding
she could not be studding
we could not be studding
you could not be studding
they could not be studding	I could not have studded
you could not have studded
she could not have studded
we could not have studded
you could not have studded
they could not have studded	I could not have been studding
you could not have been studding
she could not have been studding
we could not have been studding
you could not have been studding
they could not have been studding	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I stud?
could you stud?
could she stud?
could we stud?
could you stud?
could they stud? 	could I be studding?
could you be studding?
could she be studding?
could we be studding?
could you be studding?
could they be studding? 	could I have studded?
could you have studded?
could she have studded?
could we have studded?
could you have studded?
could they have studded? 	could I have been studding?
could you have been studding?
could she have been studding?
could we have been studding?
could you have been studding?
could they have been studding? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not stud?
could you not stud?
could she not stud?
could we not stud?
could you not stud?
could they not stud? 	could I not be studding?
could you not be studding?
could she not be studding?
could we not be studding?
could you not be studding?
could they not be studding? 	could I not have studded?
could you not have studded?
could she not have studded?
could we not have studded?
could you not have studded?
could they not have studded? 	could I not have been studding?
could you not have been studding?
could she not have been studding?
could we not have been studding?
could you not have been studding?
could they not have been studding?