Conjugação do verbo inglês
COULD GRAVE

Verbo regular: grave - graved - graved

Afirmação

Forma simple	Forma com V-ing
I could grave you could grave he could grave we could grave you could grave they could grave	I could be graving you could be graving he could be graving we could be graving you could be graving they could be graving
Perfeito	Perfeito com V-ing
I could have graved you could have graved he could have graved we could have graved you could have graved they could have graved	I could have been graving you could have been graving he could have been graving we could have been graving you could have been graving they could have been graving

Negação

Forma simple	Forma com V-ing
I couldn't grave you couldn't grave he couldn't grave we couldn't grave you couldn't grave they couldn't grave	I couldn't be graving you couldn't be graving he couldn't be graving we couldn't be graving you couldn't be graving they couldn't be graving
Perfeito	Perfeito com V-ing
I couldn't have graved you couldn't have graved he couldn't have graved we couldn't have graved you couldn't have graved they couldn't have graved	I couldn't have been graving you couldn't have been graving he couldn't have been graving we couldn't have been graving you couldn't have been graving they couldn't have been graving

Forma interrogativa

Forma simple	Forma com V-ing
could I grave? could you grave? could he grave? could we grave? could you grave? could they grave?	could I be graving? could you be graving? could he be graving? could we be graving? could you be graving? could they be graving?
Perfeito	Perfeito com V-ing
could I have graved? could you have graved? could he have graved? could we have graved? could you have graved? could they have graved?	could I have been graving? could you have been graving? could he have been graving? could we have been graving? could you have been graving? could they have been graving?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I grave? couldn't you grave? couldn't he grave? couldn't we grave? couldn't you grave? couldn't they grave?	couldn't I be graving? couldn't you be graving? couldn't he be graving? couldn't we be graving? couldn't you be graving? couldn't they be graving?
Perfeito	Perfeito com V-ing
couldn't I have graved? couldn't you have graved? couldn't he have graved? couldn't we have graved? couldn't you have graved? couldn't they have graved?	couldn't I have been graving? couldn't you have been graving? couldn't he have been graving? couldn't we have been graving? couldn't you have been graving? couldn't they have been graving?