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