I'll be referring you'll be referring she'll be referring we'll be referring you'll be referring they'll be referring
Futuro perfecto
I'll have referred you'll have referred she'll have referred we'll have referred you'll have referred they'll have referred
Futuro perfecto contínuo
I'll have been referring you'll have been referring she'll have been referring we'll have been referring you'll have been referring they'll have been referring
I'd be referring you'd be referring she'd be referring we'd be referring you'd be referring they'd be referring
Passado
I'd have referred you'd have referred she'd have referred we'd have referred you'd have referred they'd have referred
Passado continuo
I'd have been referring you'd have been referring she'd have been referring we'd have been referring you'd have been referring they'd have been referring