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