I disagree. This is an elided version of "Some [of this software] is proprietary", which is perfectly grammatical. While "Some are proprietary" would be a grammatical sentence in isolation, it would be incorrect in this context, because "software" is not a count noun and so there is no plural referent available.
It may be worth rewording this entirely to avoid other people being confused in the same way, though. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1670268 Title: Grammar mistake under 3rd-party software option To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1670268/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
