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