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