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