The phrase "had being" can be replaced with various synonyms like "had existence", "had presence", "had subsistence", "had life", or "had survival". These synonyms indicate the state of something that existed in a certain period of time, or something that was present in a particular situation. For example, "the building had existence before it was demolished" or "the idea had life for a brief moment but was eventually forgotten". Using synonyms for "had being" can help add variety to writing and avoid redundancy, providing a more concise and expressive language.