I'll be improvising you'll be improvising he'll be improvising we'll be improvising you'll be improvising they'll be improvising
Future perfect
I'll have improvised you'll have improvised he'll have improvised we'll have improvised you'll have improvised they'll have improvised
Future perfect continuous
I'll have been improvising you'll have been improvising he'll have been improvising we'll have been improvising you'll have been improvising they'll have been improvising
I'd be improvising you'd be improvising he'd be improvising we'd be improvising you'd be improvising they'd be improvising
Past
I'd have improvised you'd have improvised he'd have improvised we'd have improvised you'd have improvised they'd have improvised
Past continuous
I'd have been improvising you'd have been improvising he'd have been improvising we'd have been improvising you'd have been improvising they'd have been improvising