I could endeavor you could endeavor he could endeavor we could endeavor you could endeavor they could endeavor
Forma con V-ing
I could be endeavoring you could be endeavoring he could be endeavoring we could be endeavoring you could be endeavoring they could be endeavoring
Perfecto
I could have endeavored you could have endeavored he could have endeavored we could have endeavored you could have endeavored they could have endeavored
Perfecto con V-ing
I could have been endeavoring you could have been endeavoring he could have been endeavoring we could have been endeavoring you could have been endeavoring they could have been endeavoring
Negación
Forma simple
I could not endeavor you could not endeavor he could not endeavor we could not endeavor you could not endeavor they could not endeavor
Forma con V-ing
I could not be endeavoring you could not be endeavoring he could not be endeavoring we could not be endeavoring you could not be endeavoring they could not be endeavoring
Perfecto
I could not have endeavored you could not have endeavored he could not have endeavored we could not have endeavored you could not have endeavored they could not have endeavored
Perfecto con V-ing
I could not have been endeavoring you could not have been endeavoring he could not have been endeavoring we could not have been endeavoring you could not have been endeavoring they could not have been endeavoring
Forma interrogativa
Forma simple
could I endeavor? could you endeavor? could he endeavor? could we endeavor? could you endeavor? could they endeavor?
Forma con V-ing
could I be endeavoring? could you be endeavoring? could he be endeavoring? could we be endeavoring? could you be endeavoring? could they be endeavoring?
Perfecto
could I have endeavored? could you have endeavored? could he have endeavored? could we have endeavored? could you have endeavored? could they have endeavored?
Perfecto con V-ing
could I have been endeavoring? could you have been endeavoring? could he have been endeavoring? could we have been endeavoring? could you have been endeavoring? could they have been endeavoring?
Forma interro-negativa
Forma simple
could I not endeavor? could you not endeavor? could he not endeavor? could we not endeavor? could you not endeavor? could they not endeavor?
Forma con V-ing
could I not be endeavoring? could you not be endeavoring? could he not be endeavoring? could we not be endeavoring? could you not be endeavoring? could they not be endeavoring?
Perfecto
could I not have endeavored? could you not have endeavored? could he not have endeavored? could we not have endeavored? could you not have endeavored? could they not have endeavored?
Perfecto con V-ing
could I not have been endeavoring? could you not have been endeavoring? could he not have been endeavoring? could we not have been endeavoring? could you not have been endeavoring? could they not have been endeavoring?