I could program you could program she could program we could program you could program they could program
Forma com V-ing
I could be programming you could be programming she could be programming we could be programming you could be programming they could be programming
Perfeito
I could have programmed you could have programmed she could have programmed we could have programmed you could have programmed they could have programmed
Perfeito com V-ing
I could have been programming you could have been programming she could have been programming we could have been programming you could have been programming they could have been programming
Negação
Forma simple
I couldn't program you couldn't program she couldn't program we couldn't program you couldn't program they couldn't program
Forma com V-ing
I couldn't be programming you couldn't be programming she couldn't be programming we couldn't be programming you couldn't be programming they couldn't be programming
Perfeito
I couldn't have programmed you couldn't have programmed she couldn't have programmed we couldn't have programmed you couldn't have programmed they couldn't have programmed
Perfeito com V-ing
I couldn't have been programming you couldn't have been programming she couldn't have been programming we couldn't have been programming you couldn't have been programming they couldn't have been programming
Forma interrogativa
Forma simple
could I program? could you program? could she program? could we program? could you program? could they program?
Forma com V-ing
could I be programming? could you be programming? could she be programming? could we be programming? could you be programming? could they be programming?
Perfeito
could I have programmed? could you have programmed? could she have programmed? could we have programmed? could you have programmed? could they have programmed?
Perfeito com V-ing
could I have been programming? could you have been programming? could she have been programming? could we have been programming? could you have been programming? could they have been programming?
Forma interro-Negação
Forma simple
couldn't I program? couldn't you program? couldn't she program? couldn't we program? couldn't you program? couldn't they program?
Forma com V-ing
couldn't I be programming? couldn't you be programming? couldn't she be programming? couldn't we be programming? couldn't you be programming? couldn't they be programming?
Perfeito
couldn't I have programmed? couldn't you have programmed? couldn't she have programmed? couldn't we have programmed? couldn't you have programmed? couldn't they have programmed?
Perfeito com V-ing
couldn't I have been programming? couldn't you have been programming? couldn't she have been programming? couldn't we have been programming? couldn't you have been programming? couldn't they have been programming?