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