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