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