I could growl you could growl he could growl we could growl you could growl they could growl
Forma con V-ing
I could be growling you could be growling he could be growling we could be growling you could be growling they could be growling
Perfecto
I could have growled you could have growled he could have growled we could have growled you could have growled they could have growled
Perfecto con V-ing
I could have been growling you could have been growling he could have been growling we could have been growling you could have been growling they could have been growling
Negación
Forma simple
I couldn't growl you couldn't growl he couldn't growl we couldn't growl you couldn't growl they couldn't growl
Forma con V-ing
I couldn't be growling you couldn't be growling he couldn't be growling we couldn't be growling you couldn't be growling they couldn't be growling
Perfecto
I couldn't have growled you couldn't have growled he couldn't have growled we couldn't have growled you couldn't have growled they couldn't have growled
Perfecto con V-ing
I couldn't have been growling you couldn't have been growling he 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
could I growl? could you growl? could he growl? could we growl? could you growl? could they growl?
Forma con V-ing
could I be growling? could you be growling? could he be growling? could we be growling? could you be growling? could they be growling?
Perfecto
could I have growled? could you have growled? could he have growled? could we have growled? could you have growled? could they have growled?
Perfecto con V-ing
could I have been growling? could you have been growling? could he have been growling? could we have been growling? could you have been growling? could they have been growling?
Forma interro-negativa
Forma simple
couldn't I growl? couldn't you growl? couldn't he growl? couldn't we growl? couldn't you growl? couldn't they growl?
Forma con V-ing
couldn't I be growling? couldn't you be growling? couldn't he be growling? couldn't we be growling? couldn't you be growling? couldn't they be growling?
Perfecto
couldn't I have growled? couldn't you have growled? couldn't he have growled? couldn't we have growled? couldn't you have growled? couldn't they have growled?
Perfecto con V-ing
couldn't I have been growling? couldn't you have been growling? couldn't he have been growling? couldn't we have been growling? couldn't you have been growling? couldn't they have been growling?