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