I could optimize you could optimize she could optimize we could optimize you could optimize they could optimize
Forme en 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
Perfect
I could have optimized you could have optimized she could have optimized we could have optimized you could have optimized they could have optimized
Perfect en 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
Négation
Forme simple
I could not optimize you could not optimize she could not optimize we could not optimize you could not optimize they could not optimize
Forme en V-ing
I could not be optimizing you could not be optimizing she could not be optimizing we could not be optimizing you could not be optimizing they could not be optimizing
Perfect
I could not have optimized you could not have optimized she could not have optimized we could not have optimized you could not have optimized they could not have optimized
Perfect en V-ing
I could not have been optimizing you could not have been optimizing she could not have been optimizing we could not have been optimizing you could not have been optimizing they could not have been optimizing
Forme interrogative
Forme simple
could I optimize? could you optimize? could she optimize? could we optimize? could you optimize? could they optimize?
Forme en 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?
Perfect
could I have optimized? could you have optimized? could she have optimized? could we have optimized? could you have optimized? could they have optimized?
Perfect en 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?
Forme interro-négative
Forme simple
could I not optimize? could you not optimize? could she not optimize? could we not optimize? could you not optimize? could they not optimize?
Forme en V-ing
could I not be optimizing? could you not be optimizing? could she not be optimizing? could we not be optimizing? could you not be optimizing? could they not be optimizing?
Perfect
could I not have optimized? could you not have optimized? could she not have optimized? could we not have optimized? could you not have optimized? could they not have optimized?
Perfect en V-ing
could I not have been optimizing? could you not have been optimizing? could she not have been optimizing? could we not have been optimizing? could you not have been optimizing? could they not have been optimizing?