Here's how:
Predicate Adjective:
* Example: "The patient is a doctor."
* In this case, "doctor" describes the subject ("patient") and follows a linking verb ("is").
* It functions as a predicate adjective, modifying the subject.
Verb:
* Example: "The surgeon will doctor the patient's wound."
* In this case, "doctor" describes the action the surgeon is performing.
* It functions as a verb, indicating an action.
To determine the part of speech, look at the sentence structure and the function of the word.