ponctuation in english improve your english
| 
Punctuation Mark | 
Use to... | 
| 
( . ) Period | 
End a sentence: Dinner was delicious. | 
| 
( ? ) Question Mark | 
End a sentence and denote inquiry: What time is it? | 
| 
( ! ) Exclamation Point | 
End a sentence and denote excitement or emphasis: Watch out for
  that tree! | 
| 
( , ) Comma | 
Denote a break within a sentence or direct address of a person or
  group: Mary, listen to me. 
Separate any of the following: 
- Two or more adjectives: He is a charming, attentive listener.  
- Items in a list: Please buy eggs, milk, butter and flour. 
- The name of a city from the name of a state: I live in Salt
  Lake City, Utah. 
- Two independent clauses: The waiter still hasn’t taken our
  order, and the play starts in five minutes. 
- Direct quotations: Quoth the raven, “Nevermore.” | 
| 
( ; ) Semicolon       | 
Separate two related but independent clauses: I asked Anne to
  look at my computer; she has a knack for them. 
Separate a series of items that already contain commas:  
- For our wedding colors, I chose white, the color of innocence;
  red, the color of passion; and yellow, the color of lemons. 
- I have lived in Detroit, Michigan; Paris, France; and Sydney,
  Australia. | 
| 
( : ) Colon | 
Introduce a list. 
For Christmas, I would like the following presents: a hula hoop, a
  hippopotamus, and my two front teeth. 
Introduce a statement that expands upon the clause before the colon. 
And so, my fellow Americans: ask not what your country can do for
  you—ask what you can do for your country. | 
| 
( - ) Hyphen | 
Add a prefix: Trans-Atlantic flights are costly. 
Create compound words: Spider-Man is my favorite superhero. 
Write numbers as words: I have lived in this house for
  thirty-three years. | 
| 
(– or —) Dash | 
Make a brief interruption within a sentence or a parenthetical
  phrase: Johnny asked me—with a straight face, I might add—if he could
  borrow the car for the weekend. | 
| 
( “ ) Double Quotation | 
Enclose a direct quotation: “If you pick up a starving dog and
  make him prosperous, he will not bite you. This is the principal difference
  between a dog and a man.” | 
| 
( ‘ ) Single Quotation | 
Denote possession: I believe that is Allen’s pen. 
Denote contraction: I know it’s his because of the distinct
  monogram. 
Denote a quotation within a quotation: He told me just last week,
  “I do enjoy this monogrammed pen. My wife said, ‘Allen, it isn’t like people
  go around mistaking your pens for theirs all day.’” | 
| 
( ( ) ) Parentheses | 
Indicate clarification: Please bring home some real butter (as
  opposed to margarine). 
Indicate an afterthought or personal commentary: Anyone can edit
  Wikipedia (not that there’s anything wrong with that). |