If something performs well or badly, it operates satisfactorily or does not operate satisfactorily: To summarize, the correct form of the verb “perform” is “performs.” Remember that this applies when you are referring to a single subject carrying out an action. "Performes" is an incorrect spelling, whereas "Performs" is the correct spelling indicating the action of carrying out or accomplishing a task. If something performs a particular function, it has that function.

Understanding the Context

A complex engine has many separate components, each performing a different function. [VERB noun] Tonsillectomy is a surgery to remove the tonsils to help with breathing and infections. Most tonsillectomies are outpatient procedures under general anesthesia. Children under 2 and people with ...

Key Insights