I'll be babysiting you'll be babysiting he'll be babysiting we'll be babysiting you'll be babysiting they'll be babysiting
Future perfect
I'll have babysat you'll have babysat he'll have babysat we'll have babysat you'll have babysat they'll have babysat
Future perfect continuous
I'll have been babysiting you'll have been babysiting he'll have been babysiting we'll have been babysiting you'll have been babysiting they'll have been babysiting
I'd be babysiting you'd be babysiting he'd be babysiting we'd be babysiting you'd be babysiting they'd be babysiting
Past
I'd have babysat you'd have babysat he'd have babysat we'd have babysat you'd have babysat they'd have babysat
Past continuous
I'd have been babysiting you'd have been babysiting he'd have been babysiting we'd have been babysiting you'd have been babysiting they'd have been babysiting