I'll be shortening you'll be shortening he'll be shortening we'll be shortening you'll be shortening they'll be shortening
Future perfect
I'll have shortened you'll have shortened he'll have shortened we'll have shortened you'll have shortened they'll have shortened
Future perfect continuous
I'll have been shortening you'll have been shortening he'll have been shortening we'll have been shortening you'll have been shortening they'll have been shortening
I'd be shortening you'd be shortening he'd be shortening we'd be shortening you'd be shortening they'd be shortening
Past
I'd have shortened you'd have shortened he'd have shortened we'd have shortened you'd have shortened they'd have shortened
Past continuous
I'd have been shortening you'd have been shortening he'd have been shortening we'd have been shortening you'd have been shortening they'd have been shortening