don't I head? don't you head? doesn't he head? don't we head? don't you head? don't they head?
Present continuous
am I not heading? aren't you heading? isn't he heading? aren't we heading? aren't you heading? aren't they heading?
Preterite
didn't I head? didn't you head? didn't he head? didn't we head? didn't you head? didn't they head?
Preterite continuous
wasn't I heading? weren't you heading? wasn't he heading? weren't we heading? weren't you heading? weren't they heading?
Present perfect
haven't I headed? haven't you headed? hasn't he headed? haven't we headed? haven't you headed? haven't they headed?
Present perfect continuous
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?
Pluperfect
hadn't I headed? hadn't you headed? hadn't he headed? hadn't we headed? hadn't you headed? hadn't they headed?
Pluperfect continuous
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?
Future
won't I head? won't you head? won't he head? won't we head? won't you head? won't they head?
Future continuous
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?
Future perfect
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?
Future perfect continuous
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?
Conditional
Present
wouldn't I head? wouldn't you head? wouldn't he head? wouldn't we head? wouldn't you head? wouldn't they head?
Present continuous
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?
Past
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?
Past continuous
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?