Usage

USAGE: Use Words Appropriately and Effectively
1. Eliminate the “Um’s” and “Uh’s” 
2. English Names for the Number 0.
3. Okay, Okay, Okay.  Let Me Count the Ways.
4. There, Their, and They’re.
5. Everything Merriam Webster
6. Common Errors in English Usage.
7. Uniqueness of some English letters.
8. English Proverbs
9. English Proverbs
10. 50 Important English proverbs
11. Popular American Proverbs.
12.  Though it starts with the word, sigh, this is a very decent site to show how words area used in a sentence.  You should thank me for finding this for you.
13.  Non-standard English.  
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Descriptive Writing.