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