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Thursday, July 30, 2009

English Grammar: 01- Sentence Structure

Lesson 1 - What Is a Sentence?

A sentence is a group of words that expresses a complete thought.

The contrast of a sentence is a sentence fragment.A sentence fragment is a kind of mistake that people sometimes make in writing English.

A sentence fragment is a group of words that doesn't expresses a complete thought.

It is often use when people are casually speaking to one another but it is considered a mistake in writing.

Ex.1
out to play = sentence fragment

It is a sentence fragment because it doesn't tell us who is out to play.

Complete Sentences
Lars and Nash are going out to play.
Nash was out to play when Lars called him in his home.


Ex.2
maybe later = sentence fragment

In conversation
"Oh, do you like to play video game right now?"
-"maybe later"

A sentence fragment, which might be clear in conversation,is not clear in writing.
Always write in a complete sentences, not in sentence fragments.


In writing, a sentence always begin with a capital letter.A sentence always ends with a punctuation mark.

*period - .
*question mark - ?
* exclamation point - !


FOUR MAIN KINDS OF SENTENCES
1. Declarative
2. Interrogative
3. Exclamatory
4. Imperative
  • Declarative - A declarative sentence states a fact.
Ex.
The wind is blowing hard today.


It begins with a capital letter and ends with a period.
  • Interrogative - An interrogative sentence asks a question.
Ex.
Do you like to see movie with me tonight?

It begins with a capital letter and ends with a question mark.
  • Exclamatory - An exclamatory sentence expresses a strong emotion.
Ex.
What a beautiful day for a family picnic!

It expresses a strong emotion and ends with an exclamatory point.
  • Imperative - An Imperative Sentence makes a request or gives an order.
Ex.
Come follow me!

It is imperative sentence because I'm inviting a person to do something mainly to "Come follow me".
It may end with a period(.) or an exclamatory point (!).



Lesson 2 -Parts of a Sentence

Lesson 3 - Four Types of Sentence Structures


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