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