This document discusses compound sentences and their components. A compound sentence contains at least two independent clauses joined by a coordinating conjunction like "and", "but", or "or". It can also use a semicolon or colon to join the clauses. Common errors include comma splices, which incorrectly join clauses with just a comma. There are several types of compound sentences including those that clarify meaning, show parallel structure, happen at the same time, or show a contrast. A semicolon connects equal clauses while a colon introduces an explanatory clause.

1. Compound Sentences

2. Compound Sentence
• < 2 independent clauses
• Independent clauses are of equal
importance
• connected by:
– comma + coordinating conjunction (and, but,
or)
– colon
– semicolon

3. Ind. clause #1 + , + conj. +
ind. clause #2
• He was happy, but she was sad.

4. Common Errors:
Comma Splice
• Adding two independent clauses with just a
comma
– Ex:
• John was happy, Sally was sad.
• Ways to fix it:
–John was happy, but Sally was sad.
–John was happy. Sally was sad.
–John was happy; Sally was sad.

5. • Clarification, meaning
– One burning word that needs clarification
• Jean Van Jean’s troubles could all be traced to one
sin: he was born poor.
– The first sentence contains the burning word, sin, that
begs the question: What “sin”?
Ind. clause: explanatory or
clarification ind. clause

6. Ind. clause: explanatory or
clarification ind. clause
• Clarification, meaning
– Strange or peculiar content that begs
explanation
• Joseph died with a smile: he believed he was
finally going to heaven.
– There is no particular burning word in the first sentence
that we are curious for the meaning of, yet the contrast of
someone smiling as he is dying does make us curious.
The sentence that follows resolves the suspense.

7. Ind. Clause #1; Ind. Clause #2
(IC1 helps better understand IC2)
• Sentence #1 needs to be still on the
reader’s mind in order to understand
sentence #2
– Example
• Spartacus entered the city; all the slaves cheered
him.

8. Ind. Clause #1; Ind. Clause #2
(a parallel structure)
• I am a Taurus; my brother is a Gemini.
– There is clearly a connection between these
two ind. clauses.
– The first states what sign I am; the second
states what sign my brother is.
• I am a Taurus. My brother is a Gemini.
– Not wrong, but:
• fails to acknowledge connection
• sounds choppy

9. Ind. Clause #1; Ind. Clause #2
(same time)
• Can be used when two events are
happening at the same time
– Example
• John ate cake; Janet ate doughnuts.

10. Ind. Clause #1; Ind. Clause #2
(show a contrast)
• Can be used when there is a contrast
– Ex.
• Janet was infuriated; John was disappointed.
[In this sentence there is a contrast between how
Janet feels and how John feels]

11. Bonus: Elliptical structure
• When the verb is repeated twice  verb
can be taken out on the second sentence
– Example
• I ate the apple; my brother, the orange.
[In this case the verb “ate” is left out and replaced by
a comma.]

12. Semicolon vs. Colon
• When two sentences are connected by a
semicolon, both sentences are connected
but they are on an equal level.
• When two sentences are connected by a
colon, the 2nd serves to explain or clarify
the 1st.