Answer : has a subject
has a predicate
A subordinate clause cannot stand alone and does not express a complete thought. It has both a subject and a verb and usually starts with a relative pronoun or a subordinate conjunction. Subordinate conjunctions include so that, since, rather than, until, when, whenever, so that, than , that and many more. Moreover, some examples of relative pronouns include which, whichever, who, whoever, whose, whosever, whomever, that, who, whom and a lot more.