English
Sentence Structure

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Most sentence structure difficulties involve the following mechanical errors:  sentence fragments, run-on sentences, parallel structure, and misplaced and dangling modifiers.

 

Any group of words that is punctuated as a sentence but that does not have a subject or a complete verb is a sentence fragment.  Fragments are perfectly appropriate in conversation and in some kinds of writing, but normally they are unacceptable in college, technical, and business writing.