I could approach you could approach he could approach we could approach you could approach they could approach
Forma com V-ing
I could be approaching you could be approaching he could be approaching we could be approaching you could be approaching they could be approaching
Perfeito
I could have approached you could have approached he could have approached we could have approached you could have approached they could have approached
Perfeito com V-ing
I could have been approaching you could have been approaching he could have been approaching we could have been approaching you could have been approaching they could have been approaching
Negação
Forma simple
I couldn't approach you couldn't approach he couldn't approach we couldn't approach you couldn't approach they couldn't approach
Forma com V-ing
I couldn't be approaching you couldn't be approaching he couldn't be approaching we couldn't be approaching you couldn't be approaching they couldn't be approaching
Perfeito
I couldn't have approached you couldn't have approached he couldn't have approached we couldn't have approached you couldn't have approached they couldn't have approached
Perfeito com V-ing
I couldn't have been approaching you couldn't have been approaching he couldn't have been approaching we couldn't have been approaching you couldn't have been approaching they couldn't have been approaching
Forma interrogativa
Forma simple
could I approach? could you approach? could he approach? could we approach? could you approach? could they approach?
Forma com V-ing
could I be approaching? could you be approaching? could he be approaching? could we be approaching? could you be approaching? could they be approaching?
Perfeito
could I have approached? could you have approached? could he have approached? could we have approached? could you have approached? could they have approached?
Perfeito com V-ing
could I have been approaching? could you have been approaching? could he have been approaching? could we have been approaching? could you have been approaching? could they have been approaching?
Forma interro-Negação
Forma simple
couldn't I approach? couldn't you approach? couldn't he approach? couldn't we approach? couldn't you approach? couldn't they approach?
Forma com V-ing
couldn't I be approaching? couldn't you be approaching? couldn't he be approaching? couldn't we be approaching? couldn't you be approaching? couldn't they be approaching?
Perfeito
couldn't I have approached? couldn't you have approached? couldn't he have approached? couldn't we have approached? couldn't you have approached? couldn't they have approached?
Perfeito com V-ing
couldn't I have been approaching? couldn't you have been approaching? couldn't he have been approaching? couldn't we have been approaching? couldn't you have been approaching? couldn't they have been approaching?