Conjugação do verbo inglês
COULD PREHARDEN

Verbo regular: preharden - prehardened - prehardened

Afirmação

Forma simple	Forma com V-ing
I could preharden you could preharden he could preharden we could preharden you could preharden they could preharden	I could be prehardening you could be prehardening he could be prehardening we could be prehardening you could be prehardening they could be prehardening
Perfeito	Perfeito com V-ing
I could have prehardened you could have prehardened he could have prehardened we could have prehardened you could have prehardened they could have prehardened	I could have been prehardening you could have been prehardening he could have been prehardening we could have been prehardening you could have been prehardening they could have been prehardening

Negação

Forma simple	Forma com V-ing
I could not preharden you could not preharden he could not preharden we could not preharden you could not preharden they could not preharden	I could not be prehardening you could not be prehardening he could not be prehardening we could not be prehardening you could not be prehardening they could not be prehardening
Perfeito	Perfeito com V-ing
I could not have prehardened you could not have prehardened he could not have prehardened we could not have prehardened you could not have prehardened they could not have prehardened	I could not have been prehardening you could not have been prehardening he could not have been prehardening we could not have been prehardening you could not have been prehardening they could not have been prehardening

Forma interrogativa

Forma simple	Forma com V-ing
could I preharden? could you preharden? could he preharden? could we preharden? could you preharden? could they preharden?	could I be prehardening? could you be prehardening? could he be prehardening? could we be prehardening? could you be prehardening? could they be prehardening?
Perfeito	Perfeito com V-ing
could I have prehardened? could you have prehardened? could he have prehardened? could we have prehardened? could you have prehardened? could they have prehardened?	could I have been prehardening? could you have been prehardening? could he have been prehardening? could we have been prehardening? could you have been prehardening? could they have been prehardening?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not preharden? could you not preharden? could he not preharden? could we not preharden? could you not preharden? could they not preharden?	could I not be prehardening? could you not be prehardening? could he not be prehardening? could we not be prehardening? could you not be prehardening? could they not be prehardening?
Perfeito	Perfeito com V-ing
could I not have prehardened? could you not have prehardened? could he not have prehardened? could we not have prehardened? could you not have prehardened? could they not have prehardened?	could I not have been prehardening? could you not have been prehardening? could he not have been prehardening? could we not have been prehardening? could you not have been prehardening? could they not have been prehardening?