I have been getting confused whenever I use the following sentence.

  1. "Change the materials on the customer order" vs. "Change the materials of the customer order" Since the materials is assigned to the customer order, wouldn't "of" be more appropriate, but "on" sounds more correct.

  2. "Schedule production on these materials" vs. "Schedule production of these materials" These two confuse me as the following sentence sound more appropriate using "of." "Production of these materials will take place in November." -- In this case, we cannot use "on."

Thanks in advance!

  • You are correct that “on” and “of,” respectively, are the right choices. I believe that these are idiomatic because they clearly don’t follow any “rule” that I could find online. I couldn’t find a better way to explain it than this: “Prepositions in English are highly idiomatic. Although there are some rules for usage, much preposition usage is dictated by fixed expressions.” [Walden University] I apologize for not being able to give you a more rational explanation.
    – user392938
    Jul 28, 2020 at 3:33


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