Conjugação do verbo inglês
COULD OVERHARDEN

Verbo regular: overharden - overhardened - overhardened

Afirmação

Forma simple	Forma com V-ing
I could overharden you could overharden he could overharden we could overharden you could overharden they could overharden	I could be overhardening you could be overhardening he could be overhardening we could be overhardening you could be overhardening they could be overhardening
Perfeito	Perfeito com V-ing
I could have overhardened you could have overhardened he could have overhardened we could have overhardened you could have overhardened they could have overhardened	I could have been overhardening you could have been overhardening he could have been overhardening we could have been overhardening you could have been overhardening they could have been overhardening

Negação

Forma simple	Forma com V-ing
I couldn't overharden you couldn't overharden he couldn't overharden we couldn't overharden you couldn't overharden they couldn't overharden	I couldn't be overhardening you couldn't be overhardening he couldn't be overhardening we couldn't be overhardening you couldn't be overhardening they couldn't be overhardening
Perfeito	Perfeito com V-ing
I couldn't have overhardened you couldn't have overhardened he couldn't have overhardened we couldn't have overhardened you couldn't have overhardened they couldn't have overhardened	I couldn't have been overhardening you couldn't have been overhardening he couldn't have been overhardening we couldn't have been overhardening you couldn't have been overhardening they couldn't have been overhardening

Forma interrogativa

Forma simple	Forma com V-ing
could I overharden? could you overharden? could he overharden? could we overharden? could you overharden? could they overharden?	could I be overhardening? could you be overhardening? could he be overhardening? could we be overhardening? could you be overhardening? could they be overhardening?
Perfeito	Perfeito com V-ing
could I have overhardened? could you have overhardened? could he have overhardened? could we have overhardened? could you have overhardened? could they have overhardened?	could I have been overhardening? could you have been overhardening? could he have been overhardening? could we have been overhardening? could you have been overhardening? could they have been overhardening?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I overharden? couldn't you overharden? couldn't he overharden? couldn't we overharden? couldn't you overharden? couldn't they overharden?	couldn't I be overhardening? couldn't you be overhardening? couldn't he be overhardening? couldn't we be overhardening? couldn't you be overhardening? couldn't they be overhardening?
Perfeito	Perfeito com V-ing
couldn't I have overhardened? couldn't you have overhardened? couldn't he have overhardened? couldn't we have overhardened? couldn't you have overhardened? couldn't they have overhardened?	couldn't I have been overhardening? couldn't you have been overhardening? couldn't he have been overhardening? couldn't we have been overhardening? couldn't you have been overhardening? couldn't they have been overhardening?