If I intend to use a noun as an adjective, can I use the noun both in plural and singular form?
e.g. "noun modifier", "Bacon Batch", "A news reporter", "Sports center", "email address"
My feeling is that adjectival noun are usually singular. How come some of the above examples that are in plural? What if, says, "school uniform" or "Company law", If i really want to emphasise "schools" or "companies", could I use the plural form as an adjective?
Why some of the nouns can be used as plural while the other not?