I've been double-billing you've been double-billing he's been double-billing we've been double-billing you've been double-billing they've been double-billing
I'd been double-billing you'd been double-billing he'd been double-billing we'd been double-billing you'd been double-billing they'd been double-billing
I'll be double-billing you'll be double-billing he'll be double-billing we'll be double-billing you'll be double-billing they'll be double-billing
Futur antérieur
I'll have double-billed you'll have double-billed he'll have double-billed we'll have double-billed you'll have double-billed they'll have double-billed
Futur antérieur continu
I'll have been double-billing you'll have been double-billing he'll have been double-billing we'll have been double-billing you'll have been double-billing they'll have been double-billing
I'd be double-billing you'd be double-billing he'd be double-billing we'd be double-billing you'd be double-billing they'd be double-billing
Passé
I'd have double-billed you'd have double-billed he'd have double-billed we'd have double-billed you'd have double-billed they'd have double-billed
Passé continu
I'd have been double-billing you'd have been double-billing he'd have been double-billing we'd have been double-billing you'd have been double-billing they'd have been double-billing