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