I'll be prealtering you'll be prealtering he'll be prealtering we'll be prealtering you'll be prealtering they'll be prealtering
Futur antérieur
I'll have prealtered you'll have prealtered he'll have prealtered we'll have prealtered you'll have prealtered they'll have prealtered
Futur antérieur continu
I'll have been prealtering you'll have been prealtering he'll have been prealtering we'll have been prealtering you'll have been prealtering they'll have been prealtering
I'd be prealtering you'd be prealtering he'd be prealtering we'd be prealtering you'd be prealtering they'd be prealtering
Passé
I'd have prealtered you'd have prealtered he'd have prealtered we'd have prealtered you'd have prealtered they'd have prealtered
Passé continu
I'd have been prealtering you'd have been prealtering he'd have been prealtering we'd have been prealtering you'd have been prealtering they'd have been prealtering