Conjugação do verbo inglês
COULD GRATE

Verbo regular: grate - grated - grated

Afirmação

Forma simple	Forma com V-ing
I could grate you could grate he could grate we could grate you could grate they could grate	I could be grating you could be grating he could be grating we could be grating you could be grating they could be grating
Perfeito	Perfeito com V-ing
I could have grated you could have grated he could have grated we could have grated you could have grated they could have grated	I could have been grating you could have been grating he could have been grating we could have been grating you could have been grating they could have been grating

Negação

Forma simple	Forma com V-ing
I couldn't grate you couldn't grate he couldn't grate we couldn't grate you couldn't grate they couldn't grate	I couldn't be grating you couldn't be grating he couldn't be grating we couldn't be grating you couldn't be grating they couldn't be grating
Perfeito	Perfeito com V-ing
I couldn't have grated you couldn't have grated he couldn't have grated we couldn't have grated you couldn't have grated they couldn't have grated	I couldn't have been grating you couldn't have been grating he couldn't have been grating we couldn't have been grating you couldn't have been grating they couldn't have been grating

Forma interrogativa

Forma simple	Forma com V-ing
could I grate? could you grate? could he grate? could we grate? could you grate? could they grate?	could I be grating? could you be grating? could he be grating? could we be grating? could you be grating? could they be grating?
Perfeito	Perfeito com V-ing
could I have grated? could you have grated? could he have grated? could we have grated? could you have grated? could they have grated?	could I have been grating? could you have been grating? could he have been grating? could we have been grating? could you have been grating? could they have been grating?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I grate? couldn't you grate? couldn't he grate? couldn't we grate? couldn't you grate? couldn't they grate?	couldn't I be grating? couldn't you be grating? couldn't he be grating? couldn't we be grating? couldn't you be grating? couldn't they be grating?
Perfeito	Perfeito com V-ing
couldn't I have grated? couldn't you have grated? couldn't he have grated? couldn't we have grated? couldn't you have grated? couldn't they have grated?	couldn't I have been grating? couldn't you have been grating? couldn't he have been grating? couldn't we have been grating? couldn't you have been grating? couldn't they have been grating?