* Verb: This is the most common usage. It expresses a desire or hope.
* Example: "I wish I had more time."
* Noun: It can refer to a desire or hope itself.
* Example: "My deepest wish is to travel the world."
* Interjection: It can be used to express a feeling of longing or regret.
* Example: "Wish I had gone to the party."
The context of the sentence will determine which part of speech "wish" is.