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