I could evolve you could evolve he could evolve we could evolve you could evolve they could evolve
Forma con V-ing
I could be evolving you could be evolving he could be evolving we could be evolving you could be evolving they could be evolving
Perfecto
I could have evolved you could have evolved he could have evolved we could have evolved you could have evolved they could have evolved
Perfecto con V-ing
I could have been evolving you could have been evolving he could have been evolving we could have been evolving you could have been evolving they could have been evolving
Negación
Forma simple
I could not evolve you could not evolve he could not evolve we could not evolve you could not evolve they could not evolve
Forma con V-ing
I could not be evolving you could not be evolving he could not be evolving we could not be evolving you could not be evolving they could not be evolving
Perfecto
I could not have evolved you could not have evolved he could not have evolved we could not have evolved you could not have evolved they could not have evolved
Perfecto con V-ing
I could not have been evolving you could not have been evolving he could not have been evolving we could not have been evolving you could not have been evolving they could not have been evolving
Forma interrogativa
Forma simple
could I evolve? could you evolve? could he evolve? could we evolve? could you evolve? could they evolve?
Forma con V-ing
could I be evolving? could you be evolving? could he be evolving? could we be evolving? could you be evolving? could they be evolving?
Perfecto
could I have evolved? could you have evolved? could he have evolved? could we have evolved? could you have evolved? could they have evolved?
Perfecto con V-ing
could I have been evolving? could you have been evolving? could he have been evolving? could we have been evolving? could you have been evolving? could they have been evolving?
Forma interro-negativa
Forma simple
could I not evolve? could you not evolve? could he not evolve? could we not evolve? could you not evolve? could they not evolve?
Forma con V-ing
could I not be evolving? could you not be evolving? could he not be evolving? could we not be evolving? could you not be evolving? could they not be evolving?
Perfecto
could I not have evolved? could you not have evolved? could he not have evolved? could we not have evolved? could you not have evolved? could they not have evolved?
Perfecto con V-ing
could I not have been evolving? could you not have been evolving? could he not have been evolving? could we not have been evolving? could you not have been evolving? could they not have been evolving?