Comma Splices - Run-on Sentences - Fused Sentences

   by: Professor Sharon Delmendo       Close Window    Print Page

A list of terms and their definitions is located below.

Rules:

  1. To join independent clauses within a sentence use a coordinating conjunction and a comma.

  2.    Examples:
  3. Independent clauses may be joined without a connecting word, in which case it is necessary to use a semicolon (not a comma).

  4.    Examples:
  5. When relative pronouns are used to join independent clauses into a single sentence, a semi-colon is needed before the relative pronoun and a comma is needed after it.

  6.    Examples:

Errors:

The Comma Splice
A comma splice is when two independent clauses are joined with a comma.

Here’s an example of a comma splice.

   Wrong:    Right:
Fused Sentence, also known as Run-On Sentence
Fused sentences occur when two or more independent clauses are joined into one sentence without any form of punctuation.

Here are examples of run-on sentences:    Wrong:    Right:
Sentence Fragment
A sentence fragment, also called an incomplete sentence, is the use of a dependent clause as a complete sentence. It is easily fixed. Remember the dependent marker? By removing the dependent marker the sentence fragment becomes complete.

Here’s an example of a sentence fragment.
       Wrong: Because I forgot her birthday.
       Right: I forgot her birthday.

You can also combine the sentence fragment with another independent clause (sentence) to make the sentence complete.
       Right: She’s mad at me because I forgot her birthday.
Definitions:
Independent clause - is a portion of a sentence that could stand alone as a sentence. They have both a subject and a verb and express a complete thought.
Examples: Dependent clause - looks like a sentence, in that it has a subject and a verb, but it does not express a complete thought.
Examples: Subordinating conjunction - is a word that, when added to the start of an independent clause (complete sentence), transforms it into a dependent clause (incomplete sentence). It’s also known as a dependent marker word.
Examples: Coordinating conjunction - are used as connections to join two independent clauses into one sentence. There are seven coordinating conjunctions. Memorize them.
       and but for or
       nor yet so

Relative pronouns are words that can be used at the beginning of a single sentence and be used to join independent clauses. They’re also known as independent marker words. Examples include:
       also consequently furthermore however
       moreover nevertheless therefore that
       which who what whichever
       whoever whatever

See also the Sentence Fragment guide sheet and the Sentence Clarity guide sheet.



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