Here's why:
* Sentences need a subject and a predicate. The subject is the person or thing doing the action, and the predicate is the action itself.
* Verbs are the core of the predicate. They describe the action, state of being, or occurrence.
* Sentences need to be complete thoughts. Ending with a verb usually leaves the thought unfinished.
Example:
* Incorrect: I went to the store, buy.
* Correct: I went to the store to buy groceries.
However, there are a few exceptions:
* Imperative sentences: These commands often end with a verb. "Go!" "Stop!" "Listen!"
* Informal speech and writing: Sometimes people use incomplete sentences in casual settings. "Want some pizza?" "Going to the movies."
But in general, it's important to follow standard grammar rules for clear and effective communication.