Conjugação do verbo inglês
COULD STERILIZE

Verbo regular: sterilize - sterilized - sterilized

Afirmação

Forma simple	Forma com V-ing
I could sterilize you could sterilize he could sterilize we could sterilize you could sterilize they could sterilize	I could be sterilizing you could be sterilizing he could be sterilizing we could be sterilizing you could be sterilizing they could be sterilizing
Perfeito	Perfeito com V-ing
I could have sterilized you could have sterilized he could have sterilized we could have sterilized you could have sterilized they could have sterilized	I could have been sterilizing you could have been sterilizing he could have been sterilizing we could have been sterilizing you could have been sterilizing they could have been sterilizing

Negação

Forma simple	Forma com V-ing
I couldn't sterilize you couldn't sterilize he couldn't sterilize we couldn't sterilize you couldn't sterilize they couldn't sterilize	I couldn't be sterilizing you couldn't be sterilizing he couldn't be sterilizing we couldn't be sterilizing you couldn't be sterilizing they couldn't be sterilizing
Perfeito	Perfeito com V-ing
I couldn't have sterilized you couldn't have sterilized he couldn't have sterilized we couldn't have sterilized you couldn't have sterilized they couldn't have sterilized	I couldn't have been sterilizing you couldn't have been sterilizing he couldn't have been sterilizing we couldn't have been sterilizing you couldn't have been sterilizing they couldn't have been sterilizing

Forma interrogativa

Forma simple	Forma com V-ing
could I sterilize? could you sterilize? could he sterilize? could we sterilize? could you sterilize? could they sterilize?	could I be sterilizing? could you be sterilizing? could he be sterilizing? could we be sterilizing? could you be sterilizing? could they be sterilizing?
Perfeito	Perfeito com V-ing
could I have sterilized? could you have sterilized? could he have sterilized? could we have sterilized? could you have sterilized? could they have sterilized?	could I have been sterilizing? could you have been sterilizing? could he have been sterilizing? could we have been sterilizing? could you have been sterilizing? could they have been sterilizing?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I sterilize? couldn't you sterilize? couldn't he sterilize? couldn't we sterilize? couldn't you sterilize? couldn't they sterilize?	couldn't I be sterilizing? couldn't you be sterilizing? couldn't he be sterilizing? couldn't we be sterilizing? couldn't you be sterilizing? couldn't they be sterilizing?
Perfeito	Perfeito com V-ing
couldn't I have sterilized? couldn't you have sterilized? couldn't he have sterilized? couldn't we have sterilized? couldn't you have sterilized? couldn't they have sterilized?	couldn't I have been sterilizing? couldn't you have been sterilizing? couldn't he have been sterilizing? couldn't we have been sterilizing? couldn't you have been sterilizing? couldn't they have been sterilizing?