I could insert you could insert she could insert we could insert you could insert they could insert
Forma con V-ing
I could be inserting you could be inserting she could be inserting we could be inserting you could be inserting they could be inserting
Perfecto
I could have inserted you could have inserted she could have inserted we could have inserted you could have inserted they could have inserted
Perfecto con V-ing
I could have been inserting you could have been inserting she could have been inserting we could have been inserting you could have been inserting they could have been inserting
Negación
Forma simple
I could not insert you could not insert she could not insert we could not insert you could not insert they could not insert
Forma con V-ing
I could not be inserting you could not be inserting she could not be inserting we could not be inserting you could not be inserting they could not be inserting
Perfecto
I could not have inserted you could not have inserted she could not have inserted we could not have inserted you could not have inserted they could not have inserted
Perfecto con V-ing
I could not have been inserting you could not have been inserting she could not have been inserting we could not have been inserting you could not have been inserting they could not have been inserting
Forma interrogativa
Forma simple
could I insert? could you insert? could she insert? could we insert? could you insert? could they insert?
Forma con V-ing
could I be inserting? could you be inserting? could she be inserting? could we be inserting? could you be inserting? could they be inserting?
Perfecto
could I have inserted? could you have inserted? could she have inserted? could we have inserted? could you have inserted? could they have inserted?
Perfecto con V-ing
could I have been inserting? could you have been inserting? could she have been inserting? could we have been inserting? could you have been inserting? could they have been inserting?
Forma interro-negativa
Forma simple
could I not insert? could you not insert? could she not insert? could we not insert? could you not insert? could they not insert?
Forma con V-ing
could I not be inserting? could you not be inserting? could she not be inserting? could we not be inserting? could you not be inserting? could they not be inserting?
Perfecto
could I not have inserted? could you not have inserted? could she not have inserted? could we not have inserted? could you not have inserted? could they not have inserted?
Perfecto con V-ing
could I not have been inserting? could you not have been inserting? could she not have been inserting? could we not have been inserting? could you not have been inserting? could they not have been inserting?