I could unlock you could unlock she could unlock we could unlock you could unlock they could unlock
Forma con V-ing
I could be unlocking you could be unlocking she could be unlocking we could be unlocking you could be unlocking they could be unlocking
Perfecto
I could have unlocked you could have unlocked she could have unlocked we could have unlocked you could have unlocked they could have unlocked
Perfecto con V-ing
I could have been unlocking you could have been unlocking she could have been unlocking we could have been unlocking you could have been unlocking they could have been unlocking
Negación
Forma simple
I could not unlock you could not unlock she could not unlock we could not unlock you could not unlock they could not unlock
Forma con V-ing
I could not be unlocking you could not be unlocking she could not be unlocking we could not be unlocking you could not be unlocking they could not be unlocking
Perfecto
I could not have unlocked you could not have unlocked she could not have unlocked we could not have unlocked you could not have unlocked they could not have unlocked
Perfecto con V-ing
I could not have been unlocking you could not have been unlocking she could not have been unlocking we could not have been unlocking you could not have been unlocking they could not have been unlocking
Forma interrogativa
Forma simple
could I unlock? could you unlock? could she unlock? could we unlock? could you unlock? could they unlock?
Forma con V-ing
could I be unlocking? could you be unlocking? could she be unlocking? could we be unlocking? could you be unlocking? could they be unlocking?
Perfecto
could I have unlocked? could you have unlocked? could she have unlocked? could we have unlocked? could you have unlocked? could they have unlocked?
Perfecto con V-ing
could I have been unlocking? could you have been unlocking? could she have been unlocking? could we have been unlocking? could you have been unlocking? could they have been unlocking?
Forma interro-negativa
Forma simple
could I not unlock? could you not unlock? could she not unlock? could we not unlock? could you not unlock? could they not unlock?
Forma con V-ing
could I not be unlocking? could you not be unlocking? could she not be unlocking? could we not be unlocking? could you not be unlocking? could they not be unlocking?
Perfecto
could I not have unlocked? could you not have unlocked? could she not have unlocked? could we not have unlocked? could you not have unlocked? could they not have unlocked?
Perfecto con V-ing
could I not have been unlocking? could you not have been unlocking? could she not have been unlocking? could we not have been unlocking? could you not have been unlocking? could they not have been unlocking?