A sentence fragment is a group of words that look like a sentence but aren’t. It starts with a capital letter and ends with either a full stop(.), a question mark(?) or an exclamation mark(!). However, it cannot be called a sentence because of one or more of the following:
- It isn’t a complete thought
- It doesn’t contain a subject
- It doesn’t contain a verb
- I will find that box. Wherever it is.
(complete sentence/complete thought) (sentence fragment/doesn’t make sense by itself/incomplete thought)
Correct would be:
I will find that box, wherever it is.
- Everyone in the world.
(subject/everyone – no verb)