I've been flight-testing you've been flight-testing he's been flight-testing we've been flight-testing you've been flight-testing they've been flight-testing
I'd been flight-testing you'd been flight-testing he'd been flight-testing we'd been flight-testing you'd been flight-testing they'd been flight-testing
I'll be flight-testing you'll be flight-testing he'll be flight-testing we'll be flight-testing you'll be flight-testing they'll be flight-testing
Future perfect
I'll have flight-tested you'll have flight-tested he'll have flight-tested we'll have flight-tested you'll have flight-tested they'll have flight-tested
Future perfect continuous
I'll have been flight-testing you'll have been flight-testing he'll have been flight-testing we'll have been flight-testing you'll have been flight-testing they'll have been flight-testing
I'd be flight-testing you'd be flight-testing he'd be flight-testing we'd be flight-testing you'd be flight-testing they'd be flight-testing
Past
I'd have flight-tested you'd have flight-tested he'd have flight-tested we'd have flight-tested you'd have flight-tested they'd have flight-tested
Past continuous
I'd have been flight-testing you'd have been flight-testing he'd have been flight-testing we'd have been flight-testing you'd have been flight-testing they'd have been flight-testing