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