I'll be littering you'll be littering he'll be littering we'll be littering you'll be littering they'll be littering
Futur antérieur
I'll have littered you'll have littered he'll have littered we'll have littered you'll have littered they'll have littered
Futur antérieur continu
I'll have been littering you'll have been littering he'll have been littering we'll have been littering you'll have been littering they'll have been littering
I'd be littering you'd be littering he'd be littering we'd be littering you'd be littering they'd be littering
Passé
I'd have littered you'd have littered he'd have littered we'd have littered you'd have littered they'd have littered
Passé continu
I'd have been littering you'd have been littering he'd have been littering we'd have been littering you'd have been littering they'd have been littering