could yell
Verbo regolare: yell - yelled- yelled

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could yell
you could yell
he could yell
we could yell
you could yell
they could yell 	I could be yelling
you could be yelling
he could be yelling
we could be yelling
you could be yelling
they could be yelling	I could have yelled
you could have yelled
he could have yelled
we could have yelled
you could have yelled
they could have yelled	I could have been yelling
you could have been yelling
he could have been yelling
we could have been yelling
you could have been yelling
they could have been yelling	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't yell
you couldn't yell
he couldn't yell
we couldn't yell
you couldn't yell
they couldn't yell 	I couldn't be yelling
you couldn't be yelling
he couldn't be yelling
we couldn't be yelling
you couldn't be yelling
they couldn't be yelling	I couldn't have yelled
you couldn't have yelled
he couldn't have yelled
we couldn't have yelled
you couldn't have yelled
they couldn't have yelled	I couldn't have been yelling
you couldn't have been yelling
he couldn't have been yelling
we couldn't have been yelling
you couldn't have been yelling
they couldn't have been yelling	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I yell?
could you yell?
could he yell?
could we yell?
could you yell?
could they yell? 	could I be yelling?
could you be yelling?
could he be yelling?
could we be yelling?
could you be yelling?
could they be yelling? 	could I have yelled?
could you have yelled?
could he have yelled?
could we have yelled?
could you have yelled?
could they have yelled? 	could I have been yelling?
could you have been yelling?
could he have been yelling?
could we have been yelling?
could you have been yelling?
could they have been yelling? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I yell?
couldn't you yell?
couldn't he yell?
couldn't we yell?
couldn't you yell?
couldn't they yell? 	couldn't I be yelling?
couldn't you be yelling?
couldn't he be yelling?
couldn't we be yelling?
couldn't you be yelling?
couldn't they be yelling? 	couldn't I have yelled?
couldn't you have yelled?
couldn't he have yelled?
couldn't we have yelled?
couldn't you have yelled?
couldn't they have yelled? 	couldn't I have been yelling?
couldn't you have been yelling?
couldn't he have been yelling?
couldn't we have been yelling?
couldn't you have been yelling?
couldn't they have been yelling?