I could derail you could derail she could derail we could derail you could derail they could derail
Forma con V-ing
I could be derailing you could be derailing she could be derailing we could be derailing you could be derailing they could be derailing
Perfecto
I could have derailed you could have derailed she could have derailed we could have derailed you could have derailed they could have derailed
Perfecto con V-ing
I could have been derailing you could have been derailing she could have been derailing we could have been derailing you could have been derailing they could have been derailing
Negación
Forma simple
I could not derail you could not derail she could not derail we could not derail you could not derail they could not derail
Forma con V-ing
I could not be derailing you could not be derailing she could not be derailing we could not be derailing you could not be derailing they could not be derailing
Perfecto
I could not have derailed you could not have derailed she could not have derailed we could not have derailed you could not have derailed they could not have derailed
Perfecto con V-ing
I could not have been derailing you could not have been derailing she could not have been derailing we could not have been derailing you could not have been derailing they could not have been derailing
Forma interrogativa
Forma simple
could I derail? could you derail? could she derail? could we derail? could you derail? could they derail?
Forma con V-ing
could I be derailing? could you be derailing? could she be derailing? could we be derailing? could you be derailing? could they be derailing?
Perfecto
could I have derailed? could you have derailed? could she have derailed? could we have derailed? could you have derailed? could they have derailed?
Perfecto con V-ing
could I have been derailing? could you have been derailing? could she have been derailing? could we have been derailing? could you have been derailing? could they have been derailing?
Forma interro-negativa
Forma simple
could I not derail? could you not derail? could she not derail? could we not derail? could you not derail? could they not derail?
Forma con V-ing
could I not be derailing? could you not be derailing? could she not be derailing? could we not be derailing? could you not be derailing? could they not be derailing?
Perfecto
could I not have derailed? could you not have derailed? could she not have derailed? could we not have derailed? could you not have derailed? could they not have derailed?
Perfecto con V-ing
could I not have been derailing? could you not have been derailing? could she not have been derailing? could we not have been derailing? could you not have been derailing? could they not have been derailing?