I could aim you could aim he could aim we could aim you could aim they could aim
Forma con V-ing
I could be aiming you could be aiming he could be aiming we could be aiming you could be aiming they could be aiming
Perfecto
I could have aimed you could have aimed he could have aimed we could have aimed you could have aimed they could have aimed
Perfecto con V-ing
I could have been aiming you could have been aiming he could have been aiming we could have been aiming you could have been aiming they could have been aiming
Negación
Forma simple
I couldn't aim you couldn't aim he couldn't aim we couldn't aim you couldn't aim they couldn't aim
Forma con V-ing
I couldn't be aiming you couldn't be aiming he couldn't be aiming we couldn't be aiming you couldn't be aiming they couldn't be aiming
Perfecto
I couldn't have aimed you couldn't have aimed he couldn't have aimed we couldn't have aimed you couldn't have aimed they couldn't have aimed
Perfecto con V-ing
I couldn't have been aiming you couldn't have been aiming he couldn't have been aiming we couldn't have been aiming you couldn't have been aiming they couldn't have been aiming
Forma interrogativa
Forma simple
could I aim? could you aim? could he aim? could we aim? could you aim? could they aim?
Forma con V-ing
could I be aiming? could you be aiming? could he be aiming? could we be aiming? could you be aiming? could they be aiming?
Perfecto
could I have aimed? could you have aimed? could he have aimed? could we have aimed? could you have aimed? could they have aimed?
Perfecto con V-ing
could I have been aiming? could you have been aiming? could he have been aiming? could we have been aiming? could you have been aiming? could they have been aiming?
Forma interro-negativa
Forma simple
couldn't I aim? couldn't you aim? couldn't he aim? couldn't we aim? couldn't you aim? couldn't they aim?
Forma con V-ing
couldn't I be aiming? couldn't you be aiming? couldn't he be aiming? couldn't we be aiming? couldn't you be aiming? couldn't they be aiming?
Perfecto
couldn't I have aimed? couldn't you have aimed? couldn't he have aimed? couldn't we have aimed? couldn't you have aimed? couldn't they have aimed?
Perfecto con V-ing
couldn't I have been aiming? couldn't you have been aiming? couldn't he have been aiming? couldn't we have been aiming? couldn't you have been aiming? couldn't they have been aiming?