When to Use a Comma

Although it is a common knowledge that English is a funny or a difficult language with no specific rules on the pronunciation. However, the rules of English grammar are well set which help in proper sentence constructions and speech. Along with the proper use of the figures of speech, words, in a sentence; it is also essential to use the punctuation marks correctly and at proper places. Comma is one of the commonly used punctuation marks and here we will take a look at its uses in detail.

Rules for Comma Usage

A comma is used to separate two different terms, parts of sentences, words, etc. A period completes the sentence; whereas, a comma is used for a continuation of a different part of a sentence. Confused? Well, take a look at rules on the correct grammar usage of comma.

... to separate words, word groups, adjectives, series, etc.
e.g: She was a young, beautiful girl.
e.g: His friends, colleagues and family were present.
e.g: USA, India, England, France and Japan were the participating nations.

... used before a coordinating conjunction.
e.g: While I am at work, my younger child watches television, and the older one is off to school.
e.g: It is essential to have a balanced diet, exercise regularly, and visit the doctor at regular intervals.

... to separate two clauses.
e.g: Although born an aristocrat, he was a humble man.
e.g: Mary, the most intelligent girl at school, had fallen ill.

... used immediately after certain adverbs in a sentence.
e.g: However, this is not practical.
e.g: Therefore, you should have a proper diet.

... used before quotes.
e.g: Mrs. Dewitt said, "Wait! Help me with this!"
e.g: The teacher asked, "Do you know when to use a comma?"

... when writing dates, addresses, etc.*
e.g: Today is Monday, April 14, 1914
e.g: 70, Browning Street, Jacksonville, Florida

... while mentioning some proper nouns and titles, names.
e.g: Diana, Princess of Wales
e.g: New Delhi, India

In some countries, a comma is used after writing higher numbers.
e.g: 10,00,000 or 1,000,000

* It should be noted that there is an exception and a comma is NEVER used while writing ZIP codes, phone numbers, page numbers and house numbers

Miscellaneous Examples

• e.g: Once upon a time, there was a rich kingdom.
• e.g: I wish, Dad, that you would hear this.
• e.g: To, The Principal, (in a letter)
• e.g: Yes, I will!
• e.g: Mr. Stevens, M.D, was present.

I hope these rules and examples were useful to you. Putting these rules into practice will definitely help you in avoiding errors in writing! Good luck!