I'll be devastating you'll be devastating he'll be devastating we'll be devastating you'll be devastating they'll be devastating
Future perfect
I'll have devastated you'll have devastated he'll have devastated we'll have devastated you'll have devastated they'll have devastated
Future perfect continuous
I'll have been devastating you'll have been devastating he'll have been devastating we'll have been devastating you'll have been devastating they'll have been devastating
I'd be devastating you'd be devastating he'd be devastating we'd be devastating you'd be devastating they'd be devastating
Past
I'd have devastated you'd have devastated he'd have devastated we'd have devastated you'd have devastated they'd have devastated
Past continuous
I'd have been devastating you'd have been devastating he'd have been devastating we'd have been devastating you'd have been devastating they'd have been devastating