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