I'll be signifying you'll be signifying he'll be signifying we'll be signifying you'll be signifying they'll be signifying
Future perfect
I'll have signified you'll have signified he'll have signified we'll have signified you'll have signified they'll have signified
Future perfect continuous
I'll have been signifying you'll have been signifying he'll have been signifying we'll have been signifying you'll have been signifying they'll have been signifying
I'd be signifying you'd be signifying he'd be signifying we'd be signifying you'd be signifying they'd be signifying
Past
I'd have signified you'd have signified he'd have signified we'd have signified you'd have signified they'd have signified
Past continuous
I'd have been signifying you'd have been signifying he'd have been signifying we'd have been signifying you'd have been signifying they'd have been signifying