I'll be leapfroging you'll be leapfroging he'll be leapfroging we'll be leapfroging you'll be leapfroging they'll be leapfroging
Future perfect
I'll have leapfroged you'll have leapfroged he'll have leapfroged we'll have leapfroged you'll have leapfroged they'll have leapfroged
Future perfect continuous
I'll have been leapfroging you'll have been leapfroging he'll have been leapfroging we'll have been leapfroging you'll have been leapfroging they'll have been leapfroging
I'd be leapfroging you'd be leapfroging he'd be leapfroging we'd be leapfroging you'd be leapfroging they'd be leapfroging
Past
I'd have leapfroged you'd have leapfroged he'd have leapfroged we'd have leapfroged you'd have leapfroged they'd have leapfroged
Past continuous
I'd have been leapfroging you'd have been leapfroging he'd have been leapfroging we'd have been leapfroging you'd have been leapfroging they'd have been leapfroging