don't I register? don't you register? doesn't he register? don't we register? don't you register? don't they register?
Presente continuo
am I not registering? aren't you registering? isn't he registering? aren't we registering? aren't you registering? aren't they registering?
Pretérito
didn't I register? didn't you register? didn't he register? didn't we register? didn't you register? didn't they register?
Pretérito continuo
wasn't I registering? weren't you registering? wasn't he registering? weren't we registering? weren't you registering? weren't they registering?
Presente perfecto
haven't I registered? haven't you registered? hasn't he registered? haven't we registered? haven't you registered? haven't they registered?
Presente perfecto continuo
haven't I been registering? haven't you been registering? hasn't he been registering? haven't we been registering? haven't you been registering? haven't they been registering?
Pluscuamperfecto
hadn't I registered? hadn't you registered? hadn't he registered? hadn't we registered? hadn't you registered? hadn't they registered?
Pluscuamperfecto continuo
hadn't I been registering? hadn't you been registering? hadn't he been registering? hadn't we been registering? hadn't you been registering? hadn't they been registering?
Futuro simple
won't I register? won't you register? won't he register? won't we register? won't you register? won't they register?
Futuro continuo
won't I be registering? won't you be registering? won't he be registering? won't we be registering? won't you be registering? won't they be registering?
Futuro perfecto
won't I have registered? won't you have registered? won't he have registered? won't we have registered? won't you have registered? won't they have registered?
Futuro perfecto contínuo
won't I have been registering? won't you have been registering? won't he have been registering? won't we have been registering? won't you have been registering? won't they have been registering?
Condicional
Presente
wouldn't I register? wouldn't you register? wouldn't he register? wouldn't we register? wouldn't you register? wouldn't they register?
Presente continuo
wouldn't I be registering? wouldn't you be registering? wouldn't he be registering? wouldn't we be registering? wouldn't you be registering? wouldn't they be registering?
Passado
wouldn't I have registered? wouldn't you have registered? wouldn't he have registered? wouldn't we have registered? wouldn't you have registered? wouldn't they have registered?
Passado continuo
wouldn't I have been registering? wouldn't you have been registering? wouldn't he have been registering? wouldn't we have been registering? wouldn't you have been registering? wouldn't they have been registering?