I'll be retarding you'll be retarding she'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 she'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 she'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 she'd be retarding we'd be retarding you'd be retarding they'd be retarding
Passé
I'd have retarded you'd have retarded she'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 she'd have been retarding we'd have been retarding you'd have been retarding they'd have been retarding