The phrase "be impending" refers to something that is about to happen or is likely to occur soon. There are several synonyms for this phrase, including "be looming," "be approaching," "be imminent," "be forthcoming," "be on the horizon," and "be on the way." Each of these synonyms emphasizes the sense of urgency or inevitability that comes with something that is impending. Whether you're talking about a looming deadline, an approaching storm, or an imminent change in the political landscape, these synonyms help to convey a sense of the seriousness and gravity of the situation. So next time you need to describe something that is about to happen, consider using one of these synonyms for "be impending".