don't I occur? don't you occur? doesn't she occur? don't we occur? don't you occur? don't they occur?
Presente continuo
am I not occurring? aren't you occurring? isn't she occurring? aren't we occurring? aren't you occurring? aren't they occurring?
Preterito
didn't I occur? didn't you occur? didn't she occur? didn't we occur? didn't you occur? didn't they occur?
Preterite continua
wasn't I occurring? weren't you occurring? wasn't she occurring? weren't we occurring? weren't you occurring? weren't they occurring?
Presente perfetto
haven't I occurred? haven't you occurred? hasn't she occurred? haven't we occurred? haven't you occurred? haven't they occurred?
Presente perfetto continuo
haven't I been occurring? haven't you been occurring? hasn't she been occurring? haven't we been occurring? haven't you been occurring? haven't they been occurring?
Piuccheperfetto
hadn't I occurred? hadn't you occurred? hadn't she occurred? hadn't we occurred? hadn't you occurred? hadn't they occurred?
Piuccheperfetto continuo
hadn't I been occurring? hadn't you been occurring? hadn't she been occurring? hadn't we been occurring? hadn't you been occurring? hadn't they been occurring?
Futuro semplice
won't I occur? won't you occur? won't she occur? won't we occur? won't you occur? won't they occur?
Futuro continuo
won't I be occurring? won't you be occurring? won't she be occurring? won't we be occurring? won't you be occurring? won't they be occurring?
Futuro anteriore
won't I have occurred? won't you have occurred? won't she have occurred? won't we have occurred? won't you have occurred? won't they have occurred?
Futuro anteriore contínuo
won't I have been occurring? won't you have been occurring? won't she have been occurring? won't we have been occurring? won't you have been occurring? won't they have been occurring?
Condizionale
Presente
wouldn't I occur? wouldn't you occur? wouldn't she occur? wouldn't we occur? wouldn't you occur? wouldn't they occur?
Presente continuo
wouldn't I be occurring? wouldn't you be occurring? wouldn't she be occurring? wouldn't we be occurring? wouldn't you be occurring? wouldn't they be occurring?
Passato
wouldn't I have occurred? wouldn't you have occurred? wouldn't she have occurred? wouldn't we have occurred? wouldn't you have occurred? wouldn't they have occurred?
Passato continuo
wouldn't I have been occurring? wouldn't you have been occurring? wouldn't she have been occurring? wouldn't we have been occurring? wouldn't you have been occurring? wouldn't they have been occurring?