Conjugação do verbo inglês
COULD DOUBT DOUBT DOUBT DOUBT

Verbo regular: doubt doubt doubt doubt - doubt doubt doubt doubted - doubt doubt doubt doubted

Cuidado, este verbo pode não existir, a conjugação é dada como exemplo.

Afirmação

Forma simple	Forma com V-ing
I could doubt doubt doubt doubt you could doubt doubt doubt doubt she could doubt doubt doubt doubt we could doubt doubt doubt doubt you could doubt doubt doubt doubt they could doubt doubt doubt doubt	I could be doubt doubt doubt doubting you could be doubt doubt doubt doubting she could be doubt doubt doubt doubting we could be doubt doubt doubt doubting you could be doubt doubt doubt doubting they could be doubt doubt doubt doubting
Perfeito	Perfeito com V-ing
I could have doubt doubt doubt doubted you could have doubt doubt doubt doubted she could have doubt doubt doubt doubted we could have doubt doubt doubt doubted you could have doubt doubt doubt doubted they could have doubt doubt doubt doubted	I could have been doubt doubt doubt doubting you could have been doubt doubt doubt doubting she could have been doubt doubt doubt doubting we could have been doubt doubt doubt doubting you could have been doubt doubt doubt doubting they could have been doubt doubt doubt doubting

Negação

Forma simple	Forma com V-ing
I couldn't doubt doubt doubt doubt you couldn't doubt doubt doubt doubt she couldn't doubt doubt doubt doubt we couldn't doubt doubt doubt doubt you couldn't doubt doubt doubt doubt they couldn't doubt doubt doubt doubt	I couldn't be doubt doubt doubt doubting you couldn't be doubt doubt doubt doubting she couldn't be doubt doubt doubt doubting we couldn't be doubt doubt doubt doubting you couldn't be doubt doubt doubt doubting they couldn't be doubt doubt doubt doubting
Perfeito	Perfeito com V-ing
I couldn't have doubt doubt doubt doubted you couldn't have doubt doubt doubt doubted she couldn't have doubt doubt doubt doubted we couldn't have doubt doubt doubt doubted you couldn't have doubt doubt doubt doubted they couldn't have doubt doubt doubt doubted	I couldn't have been doubt doubt doubt doubting you couldn't have been doubt doubt doubt doubting she couldn't have been doubt doubt doubt doubting we couldn't have been doubt doubt doubt doubting you couldn't have been doubt doubt doubt doubting they couldn't have been doubt doubt doubt doubting

Forma interrogativa

Forma simple	Forma com V-ing
could I doubt doubt doubt doubt? could you doubt doubt doubt doubt? could she doubt doubt doubt doubt? could we doubt doubt doubt doubt? could you doubt doubt doubt doubt? could they doubt doubt doubt doubt?	could I be doubt doubt doubt doubting? could you be doubt doubt doubt doubting? could she be doubt doubt doubt doubting? could we be doubt doubt doubt doubting? could you be doubt doubt doubt doubting? could they be doubt doubt doubt doubting?
Perfeito	Perfeito com V-ing
could I have doubt doubt doubt doubted? could you have doubt doubt doubt doubted? could she have doubt doubt doubt doubted? could we have doubt doubt doubt doubted? could you have doubt doubt doubt doubted? could they have doubt doubt doubt doubted?	could I have been doubt doubt doubt doubting? could you have been doubt doubt doubt doubting? could she have been doubt doubt doubt doubting? could we have been doubt doubt doubt doubting? could you have been doubt doubt doubt doubting? could they have been doubt doubt doubt doubting?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I doubt doubt doubt doubt? couldn't you doubt doubt doubt doubt? couldn't she doubt doubt doubt doubt? couldn't we doubt doubt doubt doubt? couldn't you doubt doubt doubt doubt? couldn't they doubt doubt doubt doubt?	couldn't I be doubt doubt doubt doubting? couldn't you be doubt doubt doubt doubting? couldn't she be doubt doubt doubt doubting? couldn't we be doubt doubt doubt doubting? couldn't you be doubt doubt doubt doubting? couldn't they be doubt doubt doubt doubting?
Perfeito	Perfeito com V-ing
couldn't I have doubt doubt doubt doubted? couldn't you have doubt doubt doubt doubted? couldn't she have doubt doubt doubt doubted? couldn't we have doubt doubt doubt doubted? couldn't you have doubt doubt doubt doubted? couldn't they have doubt doubt doubt doubted?	couldn't I have been doubt doubt doubt doubting? couldn't you have been doubt doubt doubt doubting? couldn't she have been doubt doubt doubt doubting? couldn't we have been doubt doubt doubt doubting? couldn't you have been doubt doubt doubt doubting? couldn't they have been doubt doubt doubt doubting?