I could type you could type he could type we could type you could type they could type
Forma com V-ing
I could be typing you could be typing he could be typing we could be typing you could be typing they could be typing
Perfeito
I could have typed you could have typed he could have typed we could have typed you could have typed they could have typed
Perfeito com V-ing
I could have been typing you could have been typing he could have been typing we could have been typing you could have been typing they could have been typing
Negação
Forma simple
I couldn't type you couldn't type he couldn't type we couldn't type you couldn't type they couldn't type
Forma com V-ing
I couldn't be typing you couldn't be typing he couldn't be typing we couldn't be typing you couldn't be typing they couldn't be typing
Perfeito
I couldn't have typed you couldn't have typed he couldn't have typed we couldn't have typed you couldn't have typed they couldn't have typed
Perfeito com V-ing
I couldn't have been typing you couldn't have been typing he couldn't have been typing we couldn't have been typing you couldn't have been typing they couldn't have been typing
Forma interrogativa
Forma simple
could I type? could you type? could he type? could we type? could you type? could they type?
Forma com V-ing
could I be typing? could you be typing? could he be typing? could we be typing? could you be typing? could they be typing?
Perfeito
could I have typed? could you have typed? could he have typed? could we have typed? could you have typed? could they have typed?
Perfeito com V-ing
could I have been typing? could you have been typing? could he have been typing? could we have been typing? could you have been typing? could they have been typing?
Forma interro-Negação
Forma simple
couldn't I type? couldn't you type? couldn't he type? couldn't we type? couldn't you type? couldn't they type?
Forma com V-ing
couldn't I be typing? couldn't you be typing? couldn't he be typing? couldn't we be typing? couldn't you be typing? couldn't they be typing?
Perfeito
couldn't I have typed? couldn't you have typed? couldn't he have typed? couldn't we have typed? couldn't you have typed? couldn't they have typed?
Perfeito com V-ing
couldn't I have been typing? couldn't you have been typing? couldn't he have been typing? couldn't we have been typing? couldn't you have been typing? couldn't they have been typing?