1. Lack of a Subject:
* Example: *Running through the park.* (Who is running?)
2. Lack of a Verb:
* Example: *The beautiful, red car.* (What is the car doing?)
3. Lack of a Complete Thought:
* Example: *Because I was late.* (This is a dependent clause that needs an independent clause to make a complete thought.)
4. Missing a Necessary Element:
* Example: *Going to the store.* (This needs a subject to be complete.)
5. Dependent Clause Standing Alone:
* Example: *Although I was tired.* (This is a dependent clause that needs an independent clause to be a complete sentence.)
In summary:
A sentence fragment is missing either a subject, a verb, or both. It also could be a dependent clause that is trying to stand alone, or it might be missing a necessary element to make a complete thought.