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 contínuo
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?
Preterito contínuo
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 perfeito
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 perfeito contínuo
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?
Mais perfeito
hadn't I headed? hadn't you headed? hadn't he headed? hadn't we headed? hadn't you headed? hadn't they headed?
Contínuo mais perfeito
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
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 contínuo
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 perfeito
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 perfeito 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 contínuo
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 contínuo
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?