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