Contains a subject, but not a verb.
Does not express a complete thought.
Can be used as a sentence.
Is often marked by a dependent marker.
1. When John went to the park.
2. John went to the park.
3. John went to the park he walked his dog.
4. When John went to the park, he walked his dog.
By adding a period.
By adding a semicolon
By adding a colon
By changing one of the clauses to a dependent clause and adding a comma
Contains a subject and a verb.
Can be a sentence by itself.
Expresses a complete thought.
Does not have a subject.