Conjugação do verbo inglês
COULD ROAR

Verbo regular: roar - roared - roared

Afirmação

Forma simple	Forma com V-ing
I could roar you could roar she could roar we could roar you could roar they could roar	I could be roaring you could be roaring she could be roaring we could be roaring you could be roaring they could be roaring
Perfeito	Perfeito com V-ing
I could have roared you could have roared she could have roared we could have roared you could have roared they could have roared	I could have been roaring you could have been roaring she could have been roaring we could have been roaring you could have been roaring they could have been roaring

Negação

Forma simple	Forma com V-ing
I couldn't roar you couldn't roar she couldn't roar we couldn't roar you couldn't roar they couldn't roar	I couldn't be roaring you couldn't be roaring she couldn't be roaring we couldn't be roaring you couldn't be roaring they couldn't be roaring
Perfeito	Perfeito com V-ing
I couldn't have roared you couldn't have roared she couldn't have roared we couldn't have roared you couldn't have roared they couldn't have roared	I couldn't have been roaring you couldn't have been roaring she couldn't have been roaring we couldn't have been roaring you couldn't have been roaring they couldn't have been roaring

Forma interrogativa

Forma simple	Forma com V-ing
could I roar? could you roar? could she roar? could we roar? could you roar? could they roar?	could I be roaring? could you be roaring? could she be roaring? could we be roaring? could you be roaring? could they be roaring?
Perfeito	Perfeito com V-ing
could I have roared? could you have roared? could she have roared? could we have roared? could you have roared? could they have roared?	could I have been roaring? could you have been roaring? could she have been roaring? could we have been roaring? could you have been roaring? could they have been roaring?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I roar? couldn't you roar? couldn't she roar? couldn't we roar? couldn't you roar? couldn't they roar?	couldn't I be roaring? couldn't you be roaring? couldn't she be roaring? couldn't we be roaring? couldn't you be roaring? couldn't they be roaring?
Perfeito	Perfeito com V-ing
couldn't I have roared? couldn't you have roared? couldn't she have roared? couldn't we have roared? couldn't you have roared? couldn't they have roared?	couldn't I have been roaring? couldn't you have been roaring? couldn't she have been roaring? couldn't we have been roaring? couldn't you have been roaring? couldn't they have been roaring?