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COMMAS

 

Rule #19
Commas and Participial Phrases

 

Rule: Use a comma after the participial phrase when it comes at the beginning of the sentence.

A participial phrase begins with a participle which is a verb form. For example, the present participle of walk is walking. The past participle of walk is ( has/ have) walked. Participles can be used as adjectives. Words can be added to the participle to make a phrase.

        Example:         Walking down the street, I saw an accident.

Participial phrases can change position in the sentence.When the participial phrase comes in the middle or the last part of a sentence, you may or may not need commas because the participial phrase may be restrictive or nonrestrictive.

       Example:     Nonrestrictive Participial Phrase

               Joyce Jones, sitting next to me, is very smart.

Use commas because you can identify Joyce Jones without the participial phrase.

        Example:    Restrictive Participial Phrase

               The student sitting next to me is very smart.

Don't use commas because you need the participial phrase to identify the student.

Writing Tip: Be sure you have a participial phrase.

    Example of Wrong Use:      Walking down the street is fun.

Walking down the street is used as the subject of a sentence. It is a gerund phrase.

   Example of Correct Use:      Walking down the street, the children looked at the flowers.

 

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