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