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 couldn't endeavor you couldn't endeavor he couldn't endeavor we couldn't endeavor you couldn't endeavor they couldn't endeavor
Forma con V-ing
I couldn't be endeavoring you couldn't be endeavoring he couldn't be endeavoring we couldn't be endeavoring you couldn't be endeavoring they couldn't be endeavoring
Perfecto
I couldn't have endeavored you couldn't have endeavored he couldn't have endeavored we couldn't have endeavored you couldn't have endeavored they couldn't have endeavored
Perfecto con V-ing
I couldn't have been endeavoring you couldn't have been endeavoring he couldn't have been endeavoring we couldn't have been endeavoring you couldn't have been endeavoring they couldn't 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
couldn't I endeavor? couldn't you endeavor? couldn't he endeavor? couldn't we endeavor? couldn't you endeavor? couldn't they endeavor?
Forma con V-ing
couldn't I be endeavoring? couldn't you be endeavoring? couldn't he be endeavoring? couldn't we be endeavoring? couldn't you be endeavoring? couldn't they be endeavoring?
Perfecto
couldn't I have endeavored? couldn't you have endeavored? couldn't he have endeavored? couldn't we have endeavored? couldn't you have endeavored? couldn't they have endeavored?
Perfecto con V-ing
couldn't I have been endeavoring? couldn't you have been endeavoring? couldn't he have been endeavoring? couldn't we have been endeavoring? couldn't you have been endeavoring? couldn't they have been endeavoring?