Conjugação do verbo inglês
COULD GUESS

Verbo regular: guess - guessed - guessed

Afirmação

Forma simple	Forma com V-ing
I could guess you could guess he could guess we could guess you could guess they could guess	I could be guessing you could be guessing he could be guessing we could be guessing you could be guessing they could be guessing
Perfeito	Perfeito com V-ing
I could have guessed you could have guessed he could have guessed we could have guessed you could have guessed they could have guessed	I could have been guessing you could have been guessing he could have been guessing we could have been guessing you could have been guessing they could have been guessing

Negação

Forma simple	Forma com V-ing
I couldn't guess you couldn't guess he couldn't guess we couldn't guess you couldn't guess they couldn't guess	I couldn't be guessing you couldn't be guessing he couldn't be guessing we couldn't be guessing you couldn't be guessing they couldn't be guessing
Perfeito	Perfeito com V-ing
I couldn't have guessed you couldn't have guessed he couldn't have guessed we couldn't have guessed you couldn't have guessed they couldn't have guessed	I couldn't have been guessing you couldn't have been guessing he couldn't have been guessing we couldn't have been guessing you couldn't have been guessing they couldn't have been guessing

Forma interrogativa

Forma simple	Forma com V-ing
could I guess? could you guess? could he guess? could we guess? could you guess? could they guess?	could I be guessing? could you be guessing? could he be guessing? could we be guessing? could you be guessing? could they be guessing?
Perfeito	Perfeito com V-ing
could I have guessed? could you have guessed? could he have guessed? could we have guessed? could you have guessed? could they have guessed?	could I have been guessing? could you have been guessing? could he have been guessing? could we have been guessing? could you have been guessing? could they have been guessing?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I guess? couldn't you guess? couldn't he guess? couldn't we guess? couldn't you guess? couldn't they guess?	couldn't I be guessing? couldn't you be guessing? couldn't he be guessing? couldn't we be guessing? couldn't you be guessing? couldn't they be guessing?
Perfeito	Perfeito com V-ing
couldn't I have guessed? couldn't you have guessed? couldn't he have guessed? couldn't we have guessed? couldn't you have guessed? couldn't they have guessed?	couldn't I have been guessing? couldn't you have been guessing? couldn't he have been guessing? couldn't we have been guessing? couldn't you have been guessing? couldn't they have been guessing?