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