I could grit you could grit he could grit we could grit you could grit they could grit
Forma com V-ing
I could be gritting you could be gritting he could be gritting we could be gritting you could be gritting they could be gritting
Perfeito
I could have gritted you could have gritted he could have gritted we could have gritted you could have gritted they could have gritted
Perfeito com V-ing
I could have been gritting you could have been gritting he could have been gritting we could have been gritting you could have been gritting they could have been gritting
Negação
Forma simple
I could not grit you could not grit he could not grit we could not grit you could not grit they could not grit
Forma com V-ing
I could not be gritting you could not be gritting he could not be gritting we could not be gritting you could not be gritting they could not be gritting
Perfeito
I could not have gritted you could not have gritted he could not have gritted we could not have gritted you could not have gritted they could not have gritted
Perfeito com V-ing
I could not have been gritting you could not have been gritting he could not have been gritting we could not have been gritting you could not have been gritting they could not have been gritting
Forma interrogativa
Forma simple
could I grit? could you grit? could he grit? could we grit? could you grit? could they grit?
Forma com V-ing
could I be gritting? could you be gritting? could he be gritting? could we be gritting? could you be gritting? could they be gritting?
Perfeito
could I have gritted? could you have gritted? could he have gritted? could we have gritted? could you have gritted? could they have gritted?
Perfeito com V-ing
could I have been gritting? could you have been gritting? could he have been gritting? could we have been gritting? could you have been gritting? could they have been gritting?
Forma interro-Negação
Forma simple
could I not grit? could you not grit? could he not grit? could we not grit? could you not grit? could they not grit?
Forma com V-ing
could I not be gritting? could you not be gritting? could he not be gritting? could we not be gritting? could you not be gritting? could they not be gritting?
Perfeito
could I not have gritted? could you not have gritted? could he not have gritted? could we not have gritted? could you not have gritted? could they not have gritted?
Perfeito com V-ing
could I not have been gritting? could you not have been gritting? could he not have been gritting? could we not have been gritting? could you not have been gritting? could they not have been gritting?