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