I could jabber you could jabber he could jabber we could jabber you could jabber they could jabber
Forma con V-ing
I could be jabbering you could be jabbering he could be jabbering we could be jabbering you could be jabbering they could be jabbering
Perfecto
I could have jabbered you could have jabbered he could have jabbered we could have jabbered you could have jabbered they could have jabbered
Perfecto con V-ing
I could have been jabbering you could have been jabbering he could have been jabbering we could have been jabbering you could have been jabbering they could have been jabbering
Negación
Forma simple
I could not jabber you could not jabber he could not jabber we could not jabber you could not jabber they could not jabber
Forma con V-ing
I could not be jabbering you could not be jabbering he could not be jabbering we could not be jabbering you could not be jabbering they could not be jabbering
Perfecto
I could not have jabbered you could not have jabbered he could not have jabbered we could not have jabbered you could not have jabbered they could not have jabbered
Perfecto con V-ing
I could not have been jabbering you could not have been jabbering he could not have been jabbering we could not have been jabbering you could not have been jabbering they could not have been jabbering
Forma interrogativa
Forma simple
could I jabber? could you jabber? could he jabber? could we jabber? could you jabber? could they jabber?
Forma con V-ing
could I be jabbering? could you be jabbering? could he be jabbering? could we be jabbering? could you be jabbering? could they be jabbering?
Perfecto
could I have jabbered? could you have jabbered? could he have jabbered? could we have jabbered? could you have jabbered? could they have jabbered?
Perfecto con V-ing
could I have been jabbering? could you have been jabbering? could he have been jabbering? could we have been jabbering? could you have been jabbering? could they have been jabbering?
Forma interro-negativa
Forma simple
could I not jabber? could you not jabber? could he not jabber? could we not jabber? could you not jabber? could they not jabber?
Forma con V-ing
could I not be jabbering? could you not be jabbering? could he not be jabbering? could we not be jabbering? could you not be jabbering? could they not be jabbering?
Perfecto
could I not have jabbered? could you not have jabbered? could he not have jabbered? could we not have jabbered? could you not have jabbered? could they not have jabbered?
Perfecto con V-ing
could I not have been jabbering? could you not have been jabbering? could he not have been jabbering? could we not have been jabbering? could you not have been jabbering? could they not have been jabbering?