I'll be retarding you'll be retarding he'll be retarding we'll be retarding you'll be retarding they'll be retarding
Futur antérieur
I'll have retarded you'll have retarded he'll have retarded we'll have retarded you'll have retarded they'll have retarded
Futur antérieur continu
I'll have been retarding you'll have been retarding he'll have been retarding we'll have been retarding you'll have been retarding they'll have been retarding
I'd be retarding you'd be retarding he'd be retarding we'd be retarding you'd be retarding they'd be retarding
Passé
I'd have retarded you'd have retarded he'd have retarded we'd have retarded you'd have retarded they'd have retarded
Passé continu
I'd have been retarding you'd have been retarding he'd have been retarding we'd have been retarding you'd have been retarding they'd have been retarding