YOU SAID:

I have been shown who is the boss!

INTO JAPANESE

私は上司が誰であるかが示されています！

BACK INTO ENGLISH

I have been shown or boss is a Who!

INTO JAPANESE

私が示されているか、上司は誰です！

BACK INTO ENGLISH

What I have been shown, the boss is who!

INTO JAPANESE

私が示されてきた何、上司は誰です！

BACK INTO ENGLISH

What I have been shown, the boss is who!