Definition. - A pronoun is a word that takes the place of a noun. Pronouns can be in one of three cases: Subject, Object, or Possessive.

NOTE: We will use the convention of a thin underline for subjects and a thick underline for verbs.

Being able to find the right subject and verb will help you correct errors of agreement.

Being able to identify the subject and verb correctly will also help you with commas and semicolons as you will see later.

Definition. A Verb is a word that shows action (runs, hits, slides) or state of being (is, are, was, were, am, and so on).

1. Verbs HAS to agree with their subjects.

2. Never use a preposition to end a sentence with. Winston Churchill, corrected on this error once, responded to the young man who corrected him by saying "Young man, that is the kind of impudence up with which I will not put!

3. And don't start a sentence with a conjunction.

4. It is wrong to ever split an infinitive.

5. Avoid cliches like the plague. (They're old hat.)

6. Also, always avoid annoying alliteration.

7. Be more or less specific.

8. Parenthetical remarks (however relevant) are (usually) unnecessary.

9. Also too, never, ever use repetitive redundancies endlessly over and over again

10. No sentence fragments.

Grammar, usage, and mechanics establish the ground rules of writing, circumscribing what you are free to do. Within their limits, you select various strategies and work out those strategies in terms of words, sentences, paragraphs. The ground rules, however, are relatively inflexible, broken at your peril. It is not always easy to draw the line between grammar and usage or between usage and style. Broadly, grammar is what you must do as a user of English; usage, what you should do as a writer of more or less formal (or informal) English; and style, what you elect to do to work out your strategies and realize your purposes.