However, there are a few things to keep in mind about "they":
* Singular use: "They" is increasingly being used as a singular pronoun, referring to a single person whose gender identity is non-binary or unknown. This is a common and accepted usage in modern English.
* Formal vs. informal: In formal writing, you might consider using "he or she" instead of "they" when referring to a single person of unknown gender. However, "they" is becoming more widely accepted even in formal contexts.
* Agreement: "They" always takes the plural form of verbs. For example, "They are going to the store," not "They is going to the store."
Let me know if you have any other questions about pronouns!