Simple, Compound, Complex and compoun-Complex

SIMPLE         

                   

Formula:	Example:
S V.	Bill runs.
S and S V.	Bill and Jeff run.
S V and V.	Bill runs and jumps.
S and S V and V.	Bill and Jeff run and jump

COMPOUND

Formula:	Example:
I, f I.	Bill runs, and he jumps.
I; I.	Bill runs; he jumps.

COMPLEX

Formula:	Example:
I D.	Bill runs when he goes to school.
D, I.	When he goes to school, Bill runs.

COMPOUND-COMPLEX

Formula:	Example:
I, f I D.	Bill runs, and he jumps when he sees a dog.
I; I D.	Bill runs; he jumps when he sees a dog.
I D, f I.	Bill jumps when he sees a dog, and he runs.
D, I, f I.	When he sees a dog, Bill jumps, and he runs.
D, I; I.	When he sees a dog, Bill jumps; he runs.
I D; I.	Bill jumps when he sees a dog; he runs.

Note: This list is not exhaustive.  There are other sentences that may not fit into these formulas, but these are examples to help build writing foundations.

Formula Key:
S: Subject
V: Verb
I: Independent clause (essentially a complete sentence)
D: Dependent clause (a fragment that relies on a complete sentence)
f: Coordinating Conjunction (FANBOYS: for, and, nor, but, or, yet, so.  These are words that connect two independent clauses.  Words like because and since are not coordinating conjunctions and cannot be used in these formula examples.)