English Punctuation - Comma Usage - Introductory Phrases

Nonessential Clauses are:

1. Clauses that are not sentences.

2. Clauses that provide extra information.

3. The sentence makes sense with out the nonessential clause.

Comma usage with nonessential clauses:

Commas are placed before the nonessential clause, and at the end of the nonessential clause.

Examples:

1. My English teacher, is really nice, is going to give me a letter for college.

2. The boy, that was playing in the street, that got hit by a car was my brother.

3. My neighbor, that lives on the 2nd floor, is going to take me to school tomorrow.

• Comma Usage
• Comma Usage - Lists
• Comma Usage - Independent Clauses
• Independent and Dependent Clauses
• Nonessential Clauses-Commas
• The Difference between Clauses or Phrases
• Introductory Phrases, Clauses and Words with Commas
• Commas Usage With Titles, Dates & Addresses