I've been externalizing you've been externalizing he's been externalizing we've been externalizing you've been externalizing they've been externalizing
I'll be externalizing you'll be externalizing he'll be externalizing we'll be externalizing you'll be externalizing they'll be externalizing
Future perfect
I'll have externalized you'll have externalized he'll have externalized we'll have externalized you'll have externalized they'll have externalized
Future perfect continuous
I'll have been externalizing you'll have been externalizing he'll have been externalizing we'll have been externalizing you'll have been externalizing they'll have been externalizing
I'd be externalizing you'd be externalizing he'd be externalizing we'd be externalizing you'd be externalizing they'd be externalizing
Past
I'd have externalized you'd have externalized he'd have externalized we'd have externalized you'd have externalized they'd have externalized
Past continuous
I'd have been externalizing you'd have been externalizing he'd have been externalizing we'd have been externalizing you'd have been externalizing they'd have been externalizing