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