Conjugação do verbo inglês
COULD DOWNSHIFT

Verbo regular: downshift - downshifted - downshifted

Afirmação

Forma simple	Forma com V-ing
I could downshift you could downshift he could downshift we could downshift you could downshift they could downshift	I could be downshifting you could be downshifting he could be downshifting we could be downshifting you could be downshifting they could be downshifting
Perfeito	Perfeito com V-ing
I could have downshifted you could have downshifted he could have downshifted we could have downshifted you could have downshifted they could have downshifted	I could have been downshifting you could have been downshifting he could have been downshifting we could have been downshifting you could have been downshifting they could have been downshifting

Negação

Forma simple	Forma com V-ing
I couldn't downshift you couldn't downshift he couldn't downshift we couldn't downshift you couldn't downshift they couldn't downshift	I couldn't be downshifting you couldn't be downshifting he couldn't be downshifting we couldn't be downshifting you couldn't be downshifting they couldn't be downshifting
Perfeito	Perfeito com V-ing
I couldn't have downshifted you couldn't have downshifted he couldn't have downshifted we couldn't have downshifted you couldn't have downshifted they couldn't have downshifted	I couldn't have been downshifting you couldn't have been downshifting he couldn't have been downshifting we couldn't have been downshifting you couldn't have been downshifting they couldn't have been downshifting

Forma interrogativa

Forma simple	Forma com V-ing
could I downshift? could you downshift? could he downshift? could we downshift? could you downshift? could they downshift?	could I be downshifting? could you be downshifting? could he be downshifting? could we be downshifting? could you be downshifting? could they be downshifting?
Perfeito	Perfeito com V-ing
could I have downshifted? could you have downshifted? could he have downshifted? could we have downshifted? could you have downshifted? could they have downshifted?	could I have been downshifting? could you have been downshifting? could he have been downshifting? could we have been downshifting? could you have been downshifting? could they have been downshifting?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I downshift? couldn't you downshift? couldn't he downshift? couldn't we downshift? couldn't you downshift? couldn't they downshift?	couldn't I be downshifting? couldn't you be downshifting? couldn't he be downshifting? couldn't we be downshifting? couldn't you be downshifting? couldn't they be downshifting?
Perfeito	Perfeito com V-ing
couldn't I have downshifted? couldn't you have downshifted? couldn't he have downshifted? couldn't we have downshifted? couldn't you have downshifted? couldn't they have downshifted?	couldn't I have been downshifting? couldn't you have been downshifting? couldn't he have been downshifting? couldn't we have been downshifting? couldn't you have been downshifting? couldn't they have been downshifting?