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