could growl
Verbo regular: growl - growled- growled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could growl
you could growl
she could growl
we could growl
you could growl
they could growl 	I could be growling
you could be growling
she could be growling
we could be growling
you could be growling
they could be growling	I could have growled
you could have growled
she could have growled
we could have growled
you could have growled
they could have growled	I could have been growling
you could have been growling
she could have been growling
we could have been growling
you could have been growling
they could have been growling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't growl
you couldn't growl
she couldn't growl
we couldn't growl
you couldn't growl
they couldn't growl 	I couldn't be growling
you couldn't be growling
she couldn't be growling
we couldn't be growling
you couldn't be growling
they couldn't be growling	I couldn't have growled
you couldn't have growled
she couldn't have growled
we couldn't have growled
you couldn't have growled
they couldn't have growled	I couldn't have been growling
you couldn't have been growling
she couldn't have been growling
we couldn't have been growling
you couldn't have been growling
they couldn't have been growling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I growl?
could you growl?
could she growl?
could we growl?
could you growl?
could they growl? 	could I be growling?
could you be growling?
could she be growling?
could we be growling?
could you be growling?
could they be growling? 	could I have growled?
could you have growled?
could she have growled?
could we have growled?
could you have growled?
could they have growled? 	could I have been growling?
could you have been growling?
could she have been growling?
could we have been growling?
could you have been growling?
could they have been growling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I growl?
couldn't you growl?
couldn't she growl?
couldn't we growl?
couldn't you growl?
couldn't they growl? 	couldn't I be growling?
couldn't you be growling?
couldn't she be growling?
couldn't we be growling?
couldn't you be growling?
couldn't they be growling? 	couldn't I have growled?
couldn't you have growled?
couldn't she have growled?
couldn't we have growled?
couldn't you have growled?
couldn't they have growled? 	couldn't I have been growling?
couldn't you have been growling?
couldn't she have been growling?
couldn't we have been growling?
couldn't you have been growling?
couldn't they have been growling?