I'll be confirming you'll be confirming he'll be confirming we'll be confirming you'll be confirming they'll be confirming
Future perfect
I'll have confirmed you'll have confirmed he'll have confirmed we'll have confirmed you'll have confirmed they'll have confirmed
Future perfect continuous
I'll have been confirming you'll have been confirming he'll have been confirming we'll have been confirming you'll have been confirming they'll have been confirming
I'd be confirming you'd be confirming he'd be confirming we'd be confirming you'd be confirming they'd be confirming
Past
I'd have confirmed you'd have confirmed he'd have confirmed we'd have confirmed you'd have confirmed they'd have confirmed
Past continuous
I'd have been confirming you'd have been confirming he'd have been confirming we'd have been confirming you'd have been confirming they'd have been confirming