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Phrases and Clauses

    Phrase
    Clause
    Sentence
    Kindsof Clauses
    Clausesand Sentences
    Paragraphs

Phrase

A phrase is a group of words working together.

 Some examples of phrases are:

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Clause

A clause is a group of words working together with a subjectand a verb showing time (or tense).

Some examples of clauses are:

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Sentence

A sentenceMy computer crashed yesterday.  (One Independent Clause -- a  Simple Sentence)
When the service man arrived, he discovered I had accidently pulledthe plug; it was very embarressing, and it cost me $80.
(This is a compound-complex sentence; its clauses, in order, are adependent adverb clause of time, an independent clause, a noun clause objectof the verb "discovered", and, after the semi-colon, two more independentclauses joined by the co-ordinating conjunction "and".)

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Kinds of Clauses

The type of clause depends on its completeness and its function in thesentence.Top

Clauses and Sentences

A simple sentence has only one clause.  This clause, by definition,must be an independent (or principle or main) clause.


A compound sentence has two independent (or more) clausesjoined by one of the “fanboys” – the co-ordinating conjunctions "for, and,nor, but, or, yet, so". A semi-colon (;) can also join two main clauses to form a compound sentence; this sentence is an example.


A complex sentence has at least one independent clause andat least one dependent (or subordinate) clause.


Sometimes when a complex sentence has two independent clauses aswell as one or more independent clauses, it is called a compound-complexsentence.

An independent clause stands by itself.  By itself it is a simplesentence; in a compound sentence, there are two independent clauses joinedby one of the "FANBOYS" -- "and", "or", "but" and so on.
 
Notes:
A dependent clause needs an independent clause in thesame sentence for the sentence to express a complete thought.  Ifthe dependent clause modifies a noun, it is an adjective (or relative)clause; if the dependent clause modifies a verb, then it is an adverbclause; if it is used like a noun in a sentence, either as a subject,object, or object of a preposition, then the clause is a noun clause. Any sentence which has a dependent clause with a main or principal clauseis a complex sentence.  (If you analyze it, you will see thatthe previous sentence is a complex sentence.)  If a sentence containstwo or more independent clauses, it is a compound sentence. If a sentence has one independent clause, then it is a simple sentence.

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Paragraphs

A paragraph is a unified group of related sentences expressing aspects of one idea. The main idea is introduced in the topic sentence, and the other sentences give supporting details. (In technical writing, if all that needs to be expressed can be expressed in one sentence, this one sentence is considered a paragraph.)

The topic sentence contains the most significant, or the broadest idea, statement, concept, or question. All the other sentences in the paragraph explain or support this main idea. Most often in technical writing, the topic sentence is at the beginning of the paragraph.

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Technical Writing Online Textbook

Sentence Construction Basics