I'll be strumming you'll be strumming he'll be strumming we'll be strumming you'll be strumming they'll be strumming
Future perfect
I'll have strummed you'll have strummed he'll have strummed we'll have strummed you'll have strummed they'll have strummed
Future perfect continuous
I'll have been strumming you'll have been strumming he'll have been strumming we'll have been strumming you'll have been strumming they'll have been strumming
I'd be strumming you'd be strumming he'd be strumming we'd be strumming you'd be strumming they'd be strumming
Past
I'd have strummed you'd have strummed he'd have strummed we'd have strummed you'd have strummed they'd have strummed
Past continuous
I'd have been strumming you'd have been strumming he'd have been strumming we'd have been strumming you'd have been strumming they'd have been strumming