I could propel you could propel he could propel we could propel you could propel they could propel
Forma con V-ing
I could be propelling you could be propelling he could be propelling we could be propelling you could be propelling they could be propelling
Perfecto
I could have propelled you could have propelled he could have propelled we could have propelled you could have propelled they could have propelled
Perfecto con V-ing
I could have been propelling you could have been propelling he could have been propelling we could have been propelling you could have been propelling they could have been propelling
Negación
Forma simple
I could not propel you could not propel he could not propel we could not propel you could not propel they could not propel
Forma con V-ing
I could not be propelling you could not be propelling he could not be propelling we could not be propelling you could not be propelling they could not be propelling
Perfecto
I could not have propelled you could not have propelled he could not have propelled we could not have propelled you could not have propelled they could not have propelled
Perfecto con V-ing
I could not have been propelling you could not have been propelling he could not have been propelling we could not have been propelling you could not have been propelling they could not have been propelling
Forma interrogativa
Forma simple
could I propel? could you propel? could he propel? could we propel? could you propel? could they propel?
Forma con V-ing
could I be propelling? could you be propelling? could he be propelling? could we be propelling? could you be propelling? could they be propelling?
Perfecto
could I have propelled? could you have propelled? could he have propelled? could we have propelled? could you have propelled? could they have propelled?
Perfecto con V-ing
could I have been propelling? could you have been propelling? could he have been propelling? could we have been propelling? could you have been propelling? could they have been propelling?
Forma interro-negativa
Forma simple
could I not propel? could you not propel? could he not propel? could we not propel? could you not propel? could they not propel?
Forma con V-ing
could I not be propelling? could you not be propelling? could he not be propelling? could we not be propelling? could you not be propelling? could they not be propelling?
Perfecto
could I not have propelled? could you not have propelled? could he not have propelled? could we not have propelled? could you not have propelled? could they not have propelled?
Perfecto con V-ing
could I not have been propelling? could you not have been propelling? could he not have been propelling? could we not have been propelling? could you not have been propelling? could they not have been propelling?