I'll be befalling you'll be befalling he'll be befalling we'll be befalling you'll be befalling they'll be befalling
Future perfect
I'll have befallen you'll have befallen he'll have befallen we'll have befallen you'll have befallen they'll have befallen
Future perfect continuous
I'll have been befalling you'll have been befalling he'll have been befalling we'll have been befalling you'll have been befalling they'll have been befalling
I'd be befalling you'd be befalling he'd be befalling we'd be befalling you'd be befalling they'd be befalling
Past
I'd have befallen you'd have befallen he'd have befallen we'd have befallen you'd have befallen they'd have befallen
Past continuous
I'd have been befalling you'd have been befalling he'd have been befalling we'd have been befalling you'd have been befalling they'd have been befalling