The phrase "be able to expose" can be replaced with a variety of synonyms depending on the context. For instance, the words "reveal," "uncover," and "disclose" all imply the act of bringing something to the surface that was previously hidden or obscured. Similarly, "exhibit," "manifest," and "display" can all be used to describe the act of making something visible or evident. In some contexts, "denounce," "unmask," or "point out" might be appropriate synonyms, as they connote a more forceful or confrontational approach to exposing something. Ultimately, the choice of synonym will depend on the specifics of the situation and the tone the speaker wishes to convey.