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