I'll be narrowing you'll be narrowing he'll be narrowing we'll be narrowing you'll be narrowing they'll be narrowing
Futur antérieur
I'll have narrowed you'll have narrowed he'll have narrowed we'll have narrowed you'll have narrowed they'll have narrowed
Futur antérieur continu
I'll have been narrowing you'll have been narrowing he'll have been narrowing we'll have been narrowing you'll have been narrowing they'll have been narrowing
I'd be narrowing you'd be narrowing he'd be narrowing we'd be narrowing you'd be narrowing they'd be narrowing
Passé
I'd have narrowed you'd have narrowed he'd have narrowed we'd have narrowed you'd have narrowed they'd have narrowed
Passé continu
I'd have been narrowing you'd have been narrowing he'd have been narrowing we'd have been narrowing you'd have been narrowing they'd have been narrowing