don't I speculate? don't you speculate? doesn't he speculate? don't we speculate? don't you speculate? don't they speculate?
Present continuous
am I not speculating? aren't you speculating? isn't he speculating? aren't we speculating? aren't you speculating? aren't they speculating?
Preterite
didn't I speculate? didn't you speculate? didn't he speculate? didn't we speculate? didn't you speculate? didn't they speculate?
Preterite continuous
wasn't I speculating? weren't you speculating? wasn't he speculating? weren't we speculating? weren't you speculating? weren't they speculating?
Present perfect
haven't I speculated? haven't you speculated? hasn't he speculated? haven't we speculated? haven't you speculated? haven't they speculated?
Present perfect continuous
haven't I been speculating? haven't you been speculating? hasn't he been speculating? haven't we been speculating? haven't you been speculating? haven't they been speculating?
Pluperfect
hadn't I speculated? hadn't you speculated? hadn't he speculated? hadn't we speculated? hadn't you speculated? hadn't they speculated?
Pluperfect continuous
hadn't I been speculating? hadn't you been speculating? hadn't he been speculating? hadn't we been speculating? hadn't you been speculating? hadn't they been speculating?
Future
won't I speculate? won't you speculate? won't he speculate? won't we speculate? won't you speculate? won't they speculate?
Future continuous
won't I be speculating? won't you be speculating? won't he be speculating? won't we be speculating? won't you be speculating? won't they be speculating?
Future perfect
won't I have speculated? won't you have speculated? won't he have speculated? won't we have speculated? won't you have speculated? won't they have speculated?
Future perfect continuous
won't I have been speculating? won't you have been speculating? won't he have been speculating? won't we have been speculating? won't you have been speculating? won't they have been speculating?
Conditional
Present
wouldn't I speculate? wouldn't you speculate? wouldn't he speculate? wouldn't we speculate? wouldn't you speculate? wouldn't they speculate?
Present continuous
wouldn't I be speculating? wouldn't you be speculating? wouldn't he be speculating? wouldn't we be speculating? wouldn't you be speculating? wouldn't they be speculating?
Past
wouldn't I have speculated? wouldn't you have speculated? wouldn't he have speculated? wouldn't we have speculated? wouldn't you have speculated? wouldn't they have speculated?
Past continuous
wouldn't I have been speculating? wouldn't you have been speculating? wouldn't he have been speculating? wouldn't we have been speculating? wouldn't you have been speculating? wouldn't they have been speculating?