I'll be prolonging you'll be prolonging she'll be prolonging we'll be prolonging you'll be prolonging they'll be prolonging
Futur antérieur
I'll have prolonged you'll have prolonged she'll have prolonged we'll have prolonged you'll have prolonged they'll have prolonged
Futur antérieur continu
I'll have been prolonging you'll have been prolonging she'll have been prolonging we'll have been prolonging you'll have been prolonging they'll have been prolonging
I'd be prolonging you'd be prolonging she'd be prolonging we'd be prolonging you'd be prolonging they'd be prolonging
Passé
I'd have prolonged you'd have prolonged she'd have prolonged we'd have prolonged you'd have prolonged they'd have prolonged
Passé continu
I'd have been prolonging you'd have been prolonging she'd have been prolonging we'd have been prolonging you'd have been prolonging they'd have been prolonging