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