Inappropriate use of the non-possessive noun in a gerund sentence. (A gerund is a verbal--a word that is formed from a verb and retains certain characteristics of a verb (e.g., tenses, the ability to take an object) but no longer functions as that part of speech. A gerund always functions as a noun. It is formed by adding "ing" to the verb.)
Because a gerund functions as any other noun does, we must use the possessive case of nouns that modify it. We would write, for example, "My sister’s singing always pleases my father." In this sentence, "singing" is the gerund and "sister’s" is the possessive noun modifying it.
example "...me being nervous vs. my being nervous"