I'll be flattening you'll be flattening he'll be flattening we'll be flattening you'll be flattening they'll be flattening
Future perfect
I'll have flattened you'll have flattened he'll have flattened we'll have flattened you'll have flattened they'll have flattened
Future perfect continuous
I'll have been flattening you'll have been flattening he'll have been flattening we'll have been flattening you'll have been flattening they'll have been flattening
I'd be flattening you'd be flattening he'd be flattening we'd be flattening you'd be flattening they'd be flattening
Past
I'd have flattened you'd have flattened he'd have flattened we'd have flattened you'd have flattened they'd have flattened
Past continuous
I'd have been flattening you'd have been flattening he'd have been flattening we'd have been flattening you'd have been flattening they'd have been flattening