I could optimize you could optimize she could optimize we could optimize you could optimize they could optimize
Forma com V-ing
I could be optimizing you could be optimizing she could be optimizing we could be optimizing you could be optimizing they could be optimizing
Perfeito
I could have optimized you could have optimized she could have optimized we could have optimized you could have optimized they could have optimized
Perfeito com V-ing
I could have been optimizing you could have been optimizing she could have been optimizing we could have been optimizing you could have been optimizing they could have been optimizing
Negação
Forma simple
I couldn't optimize you couldn't optimize she couldn't optimize we couldn't optimize you couldn't optimize they couldn't optimize
Forma com V-ing
I couldn't be optimizing you couldn't be optimizing she couldn't be optimizing we couldn't be optimizing you couldn't be optimizing they couldn't be optimizing
Perfeito
I couldn't have optimized you couldn't have optimized she couldn't have optimized we couldn't have optimized you couldn't have optimized they couldn't have optimized
Perfeito com V-ing
I couldn't have been optimizing you couldn't have been optimizing she couldn't have been optimizing we couldn't have been optimizing you couldn't have been optimizing they couldn't have been optimizing
Forma interrogativa
Forma simple
could I optimize? could you optimize? could she optimize? could we optimize? could you optimize? could they optimize?
Forma com V-ing
could I be optimizing? could you be optimizing? could she be optimizing? could we be optimizing? could you be optimizing? could they be optimizing?
Perfeito
could I have optimized? could you have optimized? could she have optimized? could we have optimized? could you have optimized? could they have optimized?
Perfeito com V-ing
could I have been optimizing? could you have been optimizing? could she have been optimizing? could we have been optimizing? could you have been optimizing? could they have been optimizing?
Forma interro-Negação
Forma simple
couldn't I optimize? couldn't you optimize? couldn't she optimize? couldn't we optimize? couldn't you optimize? couldn't they optimize?
Forma com V-ing
couldn't I be optimizing? couldn't you be optimizing? couldn't she be optimizing? couldn't we be optimizing? couldn't you be optimizing? couldn't they be optimizing?
Perfeito
couldn't I have optimized? couldn't you have optimized? couldn't she have optimized? couldn't we have optimized? couldn't you have optimized? couldn't they have optimized?
Perfeito com V-ing
couldn't I have been optimizing? couldn't you have been optimizing? couldn't she have been optimizing? couldn't we have been optimizing? couldn't you have been optimizing? couldn't they have been optimizing?