I'll be conjecturing you'll be conjecturing he'll be conjecturing we'll be conjecturing you'll be conjecturing they'll be conjecturing
Future perfect
I'll have conjectured you'll have conjectured he'll have conjectured we'll have conjectured you'll have conjectured they'll have conjectured
Future perfect continuous
I'll have been conjecturing you'll have been conjecturing he'll have been conjecturing we'll have been conjecturing you'll have been conjecturing they'll have been conjecturing
I'd be conjecturing you'd be conjecturing he'd be conjecturing we'd be conjecturing you'd be conjecturing they'd be conjecturing
Past
I'd have conjectured you'd have conjectured he'd have conjectured we'd have conjectured you'd have conjectured they'd have conjectured
Past continuous
I'd have been conjecturing you'd have been conjecturing he'd have been conjecturing we'd have been conjecturing you'd have been conjecturing they'd have been conjecturing