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