I could smear you could smear he could smear we could smear you could smear they could smear
Forma con V-ing
I could be smearing you could be smearing he could be smearing we could be smearing you could be smearing they could be smearing
Perfecto
I could have smeared you could have smeared he could have smeared we could have smeared you could have smeared they could have smeared
Perfecto con V-ing
I could have been smearing you could have been smearing he could have been smearing we could have been smearing you could have been smearing they could have been smearing
Negación
Forma simple
I could not smear you could not smear he could not smear we could not smear you could not smear they could not smear
Forma con V-ing
I could not be smearing you could not be smearing he could not be smearing we could not be smearing you could not be smearing they could not be smearing
Perfecto
I could not have smeared you could not have smeared he could not have smeared we could not have smeared you could not have smeared they could not have smeared
Perfecto con V-ing
I could not have been smearing you could not have been smearing he could not have been smearing we could not have been smearing you could not have been smearing they could not have been smearing
Forma interrogativa
Forma simple
could I smear? could you smear? could he smear? could we smear? could you smear? could they smear?
Forma con V-ing
could I be smearing? could you be smearing? could he be smearing? could we be smearing? could you be smearing? could they be smearing?
Perfecto
could I have smeared? could you have smeared? could he have smeared? could we have smeared? could you have smeared? could they have smeared?
Perfecto con V-ing
could I have been smearing? could you have been smearing? could he have been smearing? could we have been smearing? could you have been smearing? could they have been smearing?
Forma interro-negativa
Forma simple
could I not smear? could you not smear? could he not smear? could we not smear? could you not smear? could they not smear?
Forma con V-ing
could I not be smearing? could you not be smearing? could he not be smearing? could we not be smearing? could you not be smearing? could they not be smearing?
Perfecto
could I not have smeared? could you not have smeared? could he not have smeared? could we not have smeared? could you not have smeared? could they not have smeared?
Perfecto con V-ing
could I not have been smearing? could you not have been smearing? could he not have been smearing? could we not have been smearing? could you not have been smearing? could they not have been smearing?