I'll be discolouring you'll be discolouring he'll be discolouring we'll be discolouring you'll be discolouring they'll be discolouring
Futur antérieur
I'll have discoloured you'll have discoloured he'll have discoloured we'll have discoloured you'll have discoloured they'll have discoloured
Futur antérieur continu
I'll have been discolouring you'll have been discolouring he'll have been discolouring we'll have been discolouring you'll have been discolouring they'll have been discolouring
I'd be discolouring you'd be discolouring he'd be discolouring we'd be discolouring you'd be discolouring they'd be discolouring
Passé
I'd have discoloured you'd have discoloured he'd have discoloured we'd have discoloured you'd have discoloured they'd have discoloured
Passé continu
I'd have been discolouring you'd have been discolouring he'd have been discolouring we'd have been discolouring you'd have been discolouring they'd have been discolouring