Does the word need a comma before and after it?

The word "need" itself doesn't require commas before or after it. Commas are used to separate clauses, items in a list, and introductory phrases, not to separate individual words.

For example:

* Correct: I need to go to the store.

* Incorrect: I, need to go to the store.

Here's when you might use a comma with "need":

* In a list: I need milk, eggs, and bread.

* After an introductory phrase: Because I need to go to the store, I'll leave soon.

* To separate clauses in a complex sentence: I need to go to the store, but I'm running late.

Let me know if you'd like more examples or have a specific sentence in mind!