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