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