Conjugação do verbo inglês
COULD CALCULATE

Verbo regular: calculate - calculated - calculated

Afirmação

Forma simple	Forma com V-ing
I could calculate you could calculate she could calculate we could calculate you could calculate they could calculate	I could be calculating you could be calculating she could be calculating we could be calculating you could be calculating they could be calculating
Perfeito	Perfeito com V-ing
I could have calculated you could have calculated she could have calculated we could have calculated you could have calculated they could have calculated	I could have been calculating you could have been calculating she could have been calculating we could have been calculating you could have been calculating they could have been calculating

Negação

Forma simple	Forma com V-ing
I could not calculate you could not calculate she could not calculate we could not calculate you could not calculate they could not calculate	I could not be calculating you could not be calculating she could not be calculating we could not be calculating you could not be calculating they could not be calculating
Perfeito	Perfeito com V-ing
I could not have calculated you could not have calculated she could not have calculated we could not have calculated you could not have calculated they could not have calculated	I could not have been calculating you could not have been calculating she could not have been calculating we could not have been calculating you could not have been calculating they could not have been calculating

Forma interrogativa

Forma simple	Forma com V-ing
could I calculate? could you calculate? could she calculate? could we calculate? could you calculate? could they calculate?	could I be calculating? could you be calculating? could she be calculating? could we be calculating? could you be calculating? could they be calculating?
Perfeito	Perfeito com V-ing
could I have calculated? could you have calculated? could she have calculated? could we have calculated? could you have calculated? could they have calculated?	could I have been calculating? could you have been calculating? could she have been calculating? could we have been calculating? could you have been calculating? could they have been calculating?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not calculate? could you not calculate? could she not calculate? could we not calculate? could you not calculate? could they not calculate?	could I not be calculating? could you not be calculating? could she not be calculating? could we not be calculating? could you not be calculating? could they not be calculating?
Perfeito	Perfeito com V-ing
could I not have calculated? could you not have calculated? could she not have calculated? could we not have calculated? could you not have calculated? could they not have calculated?	could I not have been calculating? could you not have been calculating? could she not have been calculating? could we not have been calculating? could you not have been calculating? could they not have been calculating?