1. DEPENDENT / SUBORDINATE CLAUSE(S)

2. DEPENDANT CLAUSES Relative pronouns Who Subordinate conjunctions Whom
Which
Whose
That
Subordinate conjunctions
After, since, before, as soon as, until, when while, whenever, where, wherever, because, than, although, if, though, provided that, unless, in order that, so that, as, as much as, as long as, as if, even though, even if

3. DEPENDANT CLAUSES Relative pronouns Who Subordinate conjunctions Whom
Which
Whose
That
Subordinate conjunctions
After, since, before, as soon as, until, when while, whenever, where, wherever, because, than, although, if, though, provided that, unless, in order that, so that, as, as much as, as long as, as if, even though, even if

4. DEPENDANT CLAUSES (RULE #3) If a sentence starts with one of these words than a Dependent or Subordinate Clause is starting a sentence and a comma will follow that introductory Dependent/Subordinate Clause.
Relative pronouns
Who
Whom
Which
Whose
That
Subordinate conjunctions
After, since, before, as soon as, until, when while, whenever, where, wherever, because, than, although, if, though, provided that, unless, in order that, so that, as, as much as, as long as, as if, even though, even if

5. Parallel constructions with coordinating conjunctions DEPENDENT/INDEPENDENT CLAUSES IN A SERIES 7.) The lifeguard knew that the waves were high and they were dangerous
The lifeguard knew
that the waves were high
and that they were dangerous
The lifeguard knew
the waves were high,
and the waves were dangerous