1. Writing Complex Sentences

2. (The dependent clause needs the rest of the sentence for support.)
Complex Sentence
A complex sentence is a simple sentence (independent clause) combined with one or more dependent clauses.
Because I like to study grammar, I love this class.
I love this class because I like to study grammar.
(The dependent clause needs the rest of the sentence for support.)

3. Because I like to study grammar.
Dependent clause
Fragment!
Because I like to study grammar.
A dependent clause contains a subject and verb.
It begins with a subordinating conjunction, and
it does not express a completed thought.
A dependent clause is also called a subordinate clause.

4. Sequencing Complex Sentences
Dependent Clause First (comma needed)
After the players practiced, they went out for a pizza.
Independent Clause First (no comma)
The players went out for pizza after they practiced.

5. A Note on Punctuation of Complex Sentences
Since dependent clauses are only part of a sentence, you can never connect them to another sentence with a semicolon. Semicolons are only used between two independent clauses.
I have loved you for years ; although I never admitted it.
I have loved you for years, although I never admitted it.
No! OK

6. Common Subordinating (Dependent) Conjunctions (DO NOT COPY)
after
even if
now that
that
where
although
even though
once
though
whereas as if
rather than
unless
wherever
as if
whenever
since
until
whether
because
in order
so that
when
which
before
than
in case
while

7. Compound/Complex Sentence
A compound/complex sentence is the most complicated type of sentence.
It contains at least one dependent clause and at least two independent clauses.
(A dependent clause added to two or more independent clauses)

8. Sequencing Compound-Complex Sentences
Dependent Clause First
After the party was over, Jean had a headache, so Paul cleaned up the house.
Dependent Clause Second
Jean had a headache after the party was over, so Paul cleaned up the house.
Dependent Clause Third
Jean had a headache, so Paul cleaned up the house after the party was over.

9. (DO NOT COPY)
Since every sentence in English fits into one of these four categories,
Simple
Compound
Complex
Compound/
complex

10. CONGRATULATIONS! (DO NOT COPY)
YOU NOW KNOW EVERYTHING YOU NEED TO KNOW
To write anything you want to write
Any way you want to write it
And still get the punctuation right each time!
CONGRATULATIONS!