I'll be discolouring you'll be discolouring he'll be discolouring we'll be discolouring you'll be discolouring they'll be discolouring
Futuro perfecto
I'll have discoloured you'll have discoloured he'll have discoloured we'll have discoloured you'll have discoloured they'll have discoloured
Futuro perfecto contínuo
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
Passado
I'd have discoloured you'd have discoloured he'd have discoloured we'd have discoloured you'd have discoloured they'd have discoloured
Passado continuo
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