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