Expresses a result; 'end up not', 'it will become that', 'it would mean that'.
Long explanation:
The Verb ない ことになる grammar point is used to express a result or consequence. It translates to 'end up not', 'it will become that', or 'it would mean that' in English. It is formed by using the negative form (ない) of a verb followed by ことになる.