“…I am spoil'd, 'undone' by villains!” <aq>Shakespeare, 'Othello' (1603–05)</aq>
My shoelace is 'undone'. = My shoelace has 'come undone'.
There were still some tasks 'left undone'.
(..) Supposing that I thought of something. Hmm, for instance? Well, uh, for instance, supposing I told you that your fly was undone? By remarkable coincidence, so is yours. Oh, no, not again. Ah, I see you are familiar with the "open fly" ploy. (..)1975 The Return of the Pink Panther
(..) You know, Cato, your freezer ambush ploy- I really congratulate you. It was very, very good. But, Cato, your fly is undone. And so, my friend, are you. Yes, my little yellow friend, I knew the chief would have to reconsider. (..)1975 The Return of the Pink Panther