How To Use Expanding upon In A Sentence

• I've written an essay expanding upon my reasons for disesteeming his work, so I won't recapitulate those reasons here.
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• These were perfect preconditions for successfully combining and consistently further expanding upon our high standards in seating comfort with those in the functionality of the furniture.
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• Convention center plans call for expanding upon an outdoor parking lot adjacent to, and south of, the existing center.
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