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