I've been experimenting you've been experimenting he's been experimenting we've been experimenting you've been experimenting they've been experimenting
I'll be experimenting you'll be experimenting he'll be experimenting we'll be experimenting you'll be experimenting they'll be experimenting
Future perfect
I'll have experimented you'll have experimented he'll have experimented we'll have experimented you'll have experimented they'll have experimented
Future perfect continuous
I'll have been experimenting you'll have been experimenting he'll have been experimenting we'll have been experimenting you'll have been experimenting they'll have been experimenting
I'd be experimenting you'd be experimenting he'd be experimenting we'd be experimenting you'd be experimenting they'd be experimenting
Past
I'd have experimented you'd have experimented he'd have experimented we'd have experimented you'd have experimented they'd have experimented
Past continuous
I'd have been experimenting you'd have been experimenting he'd have been experimenting we'd have been experimenting you'd have been experimenting they'd have been experimenting