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