could howl
Verbo regolare: howl - howled- howled

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could howl
you could howl
she could howl
we could howl
you could howl
they could howl 	I could be howling
you could be howling
she could be howling
we could be howling
you could be howling
they could be howling	I could have howled
you could have howled
she could have howled
we could have howled
you could have howled
they could have howled	I could have been howling
you could have been howling
she could have been howling
we could have been howling
you could have been howling
they could have been howling	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not howl
you could not howl
she could not howl
we could not howl
you could not howl
they could not howl 	I could not be howling
you could not be howling
she could not be howling
we could not be howling
you could not be howling
they could not be howling	I could not have howled
you could not have howled
she could not have howled
we could not have howled
you could not have howled
they could not have howled	I could not have been howling
you could not have been howling
she could not have been howling
we could not have been howling
you could not have been howling
they could not have been howling	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I howl?
could you howl?
could she howl?
could we howl?
could you howl?
could they howl? 	could I be howling?
could you be howling?
could she be howling?
could we be howling?
could you be howling?
could they be howling? 	could I have howled?
could you have howled?
could she have howled?
could we have howled?
could you have howled?
could they have howled? 	could I have been howling?
could you have been howling?
could she have been howling?
could we have been howling?
could you have been howling?
could they have been howling? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not howl?
could you not howl?
could she not howl?
could we not howl?
could you not howl?
could they not howl? 	could I not be howling?
could you not be howling?
could she not be howling?
could we not be howling?
could you not be howling?
could they not be howling? 	could I not have howled?
could you not have howled?
could she not have howled?
could we not have howled?
could you not have howled?
could they not have howled? 	could I not have been howling?
could you not have been howling?
could she not have been howling?
could we not have been howling?
could you not have been howling?
could they not have been howling?