IF there is a wikitree connection before you and anyone, you can go to the profile of interest and click on Relationship, a link appearing below the major tabs (Profile, Edit, Photos...), which are themselves below the profile name.
If no connection is found, it will tell you that. But that only means that following your ancestors and their sibling and descendant links doesn't connect with the profile of interest. E.g., if one of your ancestors is a duplicate with another profile that connects to William Wordsworth, that connection will not be found. That's one of reasons wikitree strives for "one profile per person!"