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