Coordination and Subordination

Joining two sentences with related ideas can make your writing less choppy.

Coordination

In coordination, two sentences can be joined with a comma and a coordinating conjunction, a semicolon alone, or a semicolon and a conjunctive adverb.

TWO SENTENCES
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JOINED WITH A COMMA AND COORDINATING CONJUNCTION
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COORDINATING CONJUNCTIONS
for and nor but
or yet so  
JOINED WITH A SEMICOLON ALONE
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JOINED WITH A SEMICOLON AND A CONJUNCTIVE ADVERBS
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CONJUNCTIVE ADVERB    
also however moreover
as a result in addition still
besides in fact then
furthermore instead therefore

Subordination

With subordination, you put a dependent word (such as after, although, because, or when) in front of one of the sentences, which then becomes a dependent clause and is no longer a complete sentence.

TWO SENTENCES image
JOINED THROUGH SUBORDINATION image
JOINED THROUGH SUBORDINATION image
SUBORDINATING CONJUNCTIONS (DEPENDENT WORDS)
after if unless
although if only until
as now that when
as if once whenever
because since where
before so that while
even if/though