Fragments
Sentence Sentence contains a subject and a verb and expresses a complete thought.
subject
verb
Steve Jobs died in 2011.
Fragment Sentence fragment does not contain a verb.
fragment In 2002, the Winter Olympics in Salt Lake.
sentence In 2002, the Winter Olympics was in Salt Lake.
Fragment Sentence fragment does not contain a correct form of a verb.
fragment
John willing to pass the test.
sentence
John was willing to pass the test.
Fragment Sentence fragment does not contain a subject.
fragment
Explained his new theory.
sentence
The scientist explained his new theory.
Fragment Sentence fragment does not express a complete thought. (who-which-that-whose) : need 2 verbs.
fragment
The nurses who looked after me.
sentence
The nurses looked after me.
The nurses, who looked after me, were very kind.