Conjugação do verbo inglês
COULD RUST

Verbo regular: rust - rusted - rusted

Afirmação

Forma simple	Forma com V-ing
I could rust you could rust he could rust we could rust you could rust they could rust	I could be rusting you could be rusting he could be rusting we could be rusting you could be rusting they could be rusting
Perfeito	Perfeito com V-ing
I could have rusted you could have rusted he could have rusted we could have rusted you could have rusted they could have rusted	I could have been rusting you could have been rusting he could have been rusting we could have been rusting you could have been rusting they could have been rusting

Negação

Forma simple	Forma com V-ing
I could not rust you could not rust he could not rust we could not rust you could not rust they could not rust	I could not be rusting you could not be rusting he could not be rusting we could not be rusting you could not be rusting they could not be rusting
Perfeito	Perfeito com V-ing
I could not have rusted you could not have rusted he could not have rusted we could not have rusted you could not have rusted they could not have rusted	I could not have been rusting you could not have been rusting he could not have been rusting we could not have been rusting you could not have been rusting they could not have been rusting

Forma interrogativa

Forma simple	Forma com V-ing
could I rust? could you rust? could he rust? could we rust? could you rust? could they rust?	could I be rusting? could you be rusting? could he be rusting? could we be rusting? could you be rusting? could they be rusting?
Perfeito	Perfeito com V-ing
could I have rusted? could you have rusted? could he have rusted? could we have rusted? could you have rusted? could they have rusted?	could I have been rusting? could you have been rusting? could he have been rusting? could we have been rusting? could you have been rusting? could they have been rusting?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not rust? could you not rust? could he not rust? could we not rust? could you not rust? could they not rust?	could I not be rusting? could you not be rusting? could he not be rusting? could we not be rusting? could you not be rusting? could they not be rusting?
Perfeito	Perfeito com V-ing
could I not have rusted? could you not have rusted? could he not have rusted? could we not have rusted? could you not have rusted? could they not have rusted?	could I not have been rusting? could you not have been rusting? could he not have been rusting? could we not have been rusting? could you not have been rusting? could they not have been rusting?