I'll be tributarying you'll be tributarying he'll be tributarying we'll be tributarying you'll be tributarying they'll be tributarying
Futuro perfecto
I'll have tributaried you'll have tributaried he'll have tributaried we'll have tributaried you'll have tributaried they'll have tributaried
Futuro perfecto contínuo
I'll have been tributarying you'll have been tributarying he'll have been tributarying we'll have been tributarying you'll have been tributarying they'll have been tributarying
I'd be tributarying you'd be tributarying he'd be tributarying we'd be tributarying you'd be tributarying they'd be tributarying
Passado
I'd have tributaried you'd have tributaried he'd have tributaried we'd have tributaried you'd have tributaried they'd have tributaried
Passado continuo
I'd have been tributarying you'd have been tributarying he'd have been tributarying we'd have been tributarying you'd have been tributarying they'd have been tributarying