I'll be prefacering you'll be prefacering he'll be prefacering we'll be prefacering you'll be prefacering they'll be prefacering
Futuro anteriore
I'll have prefacered you'll have prefacered he'll have prefacered we'll have prefacered you'll have prefacered they'll have prefacered
Futuro anteriore contínuo
I'll have been prefacering you'll have been prefacering he'll have been prefacering we'll have been prefacering you'll have been prefacering they'll have been prefacering
I'd be prefacering you'd be prefacering he'd be prefacering we'd be prefacering you'd be prefacering they'd be prefacering
Passato
I'd have prefacered you'd have prefacered he'd have prefacered we'd have prefacered you'd have prefacered they'd have prefacered
Passato continuo
I'd have been prefacering you'd have been prefacering he'd have been prefacering we'd have been prefacering you'd have been prefacering they'd have been prefacering