I could propel you could propel she could propel we could propel you could propel they could propel
Forma con V-ing
I could be propelling you could be propelling she could be propelling we could be propelling you could be propelling they could be propelling
Perfecto
I could have propelled you could have propelled she 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 she could have been propelling we could have been propelling you could have been propelling they could have been propelling
Negación
Forma simple
I couldn't propel you couldn't propel she couldn't propel we couldn't propel you couldn't propel they couldn't propel
Forma con V-ing
I couldn't be propelling you couldn't be propelling she couldn't be propelling we couldn't be propelling you couldn't be propelling they couldn't be propelling
Perfecto
I couldn't have propelled you couldn't have propelled she couldn't have propelled we couldn't have propelled you couldn't have propelled they couldn't have propelled
Perfecto con V-ing
I couldn't have been propelling you couldn't have been propelling she couldn't have been propelling we couldn't have been propelling you couldn't have been propelling they couldn't have been propelling
Forma interrogativa
Forma simple
could I propel? could you propel? could she propel? could we propel? could you propel? could they propel?
Forma con V-ing
could I be propelling? could you be propelling? could she be propelling? could we be propelling? could you be propelling? could they be propelling?
Perfecto
could I have propelled? could you have propelled? could she 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 she have been propelling? could we have been propelling? could you have been propelling? could they have been propelling?
Forma interro-negativa
Forma simple
couldn't I propel? couldn't you propel? couldn't she propel? couldn't we propel? couldn't you propel? couldn't they propel?
Forma con V-ing
couldn't I be propelling? couldn't you be propelling? couldn't she be propelling? couldn't we be propelling? couldn't you be propelling? couldn't they be propelling?
Perfecto
couldn't I have propelled? couldn't you have propelled? couldn't she have propelled? couldn't we have propelled? couldn't you have propelled? couldn't they have propelled?
Perfecto con V-ing
couldn't I have been propelling? couldn't you have been propelling? couldn't she have been propelling? couldn't we have been propelling? couldn't you have been propelling? couldn't they have been propelling?