I've been investigating you've been investigating she's been investigating we've been investigating you've been investigating they've been investigating
I'll be investigating you'll be investigating she'll be investigating we'll be investigating you'll be investigating they'll be investigating
Future perfect
I'll have investigated you'll have investigated she'll have investigated we'll have investigated you'll have investigated they'll have investigated
Future perfect continuous
I'll have been investigating you'll have been investigating she'll have been investigating we'll have been investigating you'll have been investigating they'll have been investigating
I'd be investigating you'd be investigating she'd be investigating we'd be investigating you'd be investigating they'd be investigating
Past
I'd have investigated you'd have investigated she'd have investigated we'd have investigated you'd have investigated they'd have investigated
Past continuous
I'd have been investigating you'd have been investigating she'd have been investigating we'd have been investigating you'd have been investigating they'd have been investigating