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