Method II: Using a Semicolon between two simple sentences

Rain can be dangerous; it makes the roads slippery.

Method III: Using a semicolon and an adverbial conjunction:

My parents checked my homework every night; thus I did well at school.

She gave me good advice; moreover, she was always ready to help.

(Put a comma after the conjunctive adverb if the conjunctive adverb is more than one syllable long.)

Subordination

Method IV: Using a dependent Clause to Begin a Complex Sentence:

Because my car had a flat tire, I was late for work.

Method V: Using a Dependent Clause to End a Complex sentence:

I was late for work because my car had a flat tire.

Punctuating Relative Clauses (defining and non-defining)

Method VI: Relative Clauses that are essential to the meaning of the sentence do not require commas (Defining Relative Clause):

The poem that my classmate read in class was very powerful.

Method VII: Relative Clauses that are not essential to the meaning of the sentence require commas (Non-Defining Relative Clause)

Mother's fruit salad, which consisted of apples, grapes, and pears, was delicious.