例行 is almost always used before another noun: 例行检查 (routine inspection), 例行会议 (regular meeting), 例行公事 (mere formality). It cannot stand alone as a predicate.
grammar
例行公事 (lìxíng gōngshì) is a set phrase meaning 'going through the motions' or 'a mere formality,' often with a slightly negative connotation implying something is done perfunctorily.
