I could last you could last he could last we could last you could last they could last
Forma com V-ing
I could be lasting you could be lasting he could be lasting we could be lasting you could be lasting they could be lasting
Perfeito
I could have lasted you could have lasted he could have lasted we could have lasted you could have lasted they could have lasted
Perfeito com V-ing
I could have been lasting you could have been lasting he could have been lasting we could have been lasting you could have been lasting they could have been lasting
Negação
Forma simple
I couldn't last you couldn't last he couldn't last we couldn't last you couldn't last they couldn't last
Forma com V-ing
I couldn't be lasting you couldn't be lasting he couldn't be lasting we couldn't be lasting you couldn't be lasting they couldn't be lasting
Perfeito
I couldn't have lasted you couldn't have lasted he couldn't have lasted we couldn't have lasted you couldn't have lasted they couldn't have lasted
Perfeito com V-ing
I couldn't have been lasting you couldn't have been lasting he couldn't have been lasting we couldn't have been lasting you couldn't have been lasting they couldn't have been lasting
Forma interrogativa
Forma simple
could I last? could you last? could he last? could we last? could you last? could they last?
Forma com V-ing
could I be lasting? could you be lasting? could he be lasting? could we be lasting? could you be lasting? could they be lasting?
Perfeito
could I have lasted? could you have lasted? could he have lasted? could we have lasted? could you have lasted? could they have lasted?
Perfeito com V-ing
could I have been lasting? could you have been lasting? could he have been lasting? could we have been lasting? could you have been lasting? could they have been lasting?
Forma interro-Negação
Forma simple
couldn't I last? couldn't you last? couldn't he last? couldn't we last? couldn't you last? couldn't they last?
Forma com V-ing
couldn't I be lasting? couldn't you be lasting? couldn't he be lasting? couldn't we be lasting? couldn't you be lasting? couldn't they be lasting?
Perfeito
couldn't I have lasted? couldn't you have lasted? couldn't he have lasted? couldn't we have lasted? couldn't you have lasted? couldn't they have lasted?
Perfeito com V-ing
couldn't I have been lasting? couldn't you have been lasting? couldn't he have been lasting? couldn't we have been lasting? couldn't you have been lasting? couldn't they have been lasting?