I'll be spelling you'll be spelling he'll be spelling we'll be spelling you'll be spelling they'll be spelling
Future perfect
I'll have spelled, spelt you'll have spelled, spelt he'll have spelled, spelt we'll have spelled, spelt you'll have spelled, spelt they'll have spelled, spelt
Future perfect continuous
I'll have been spelling you'll have been spelling he'll have been spelling we'll have been spelling you'll have been spelling they'll have been spelling
I'd be spelling you'd be spelling he'd be spelling we'd be spelling you'd be spelling they'd be spelling
Past
I'd have spelled, spelt you'd have spelled, spelt he'd have spelled, spelt we'd have spelled, spelt you'd have spelled, spelt they'd have spelled, spelt
Past continuous
I'd have been spelling you'd have been spelling he'd have been spelling we'd have been spelling you'd have been spelling they'd have been spelling