I'll be dumbfounding you'll be dumbfounding he'll be dumbfounding we'll be dumbfounding you'll be dumbfounding they'll be dumbfounding
Futur antérieur
I'll have dumbfounded you'll have dumbfounded he'll have dumbfounded we'll have dumbfounded you'll have dumbfounded they'll have dumbfounded
Futur antérieur continu
I'll have been dumbfounding you'll have been dumbfounding he'll have been dumbfounding we'll have been dumbfounding you'll have been dumbfounding they'll have been dumbfounding
I'd be dumbfounding you'd be dumbfounding he'd be dumbfounding we'd be dumbfounding you'd be dumbfounding they'd be dumbfounding
Passé
I'd have dumbfounded you'd have dumbfounded he'd have dumbfounded we'd have dumbfounded you'd have dumbfounded they'd have dumbfounded
Passé continu
I'd have been dumbfounding you'd have been dumbfounding he'd have been dumbfounding we'd have been dumbfounding you'd have been dumbfounding they'd have been dumbfounding