Basic rules of punctuation include the need for punctuation to be parallel, the use of a dash as a strong comma, and the use of apostrophes to show possession or indicate omission. Also, writers use semicolons to join tw... More » Education

Three major websites help users to check punctuation and grammar:, and All three programs have edit boxes where users enter sentences and the program analyzes punctuation... More » Technology Internet & Networking

One common English grammar rule is that all sentences begin with a capital letter. Titles of people, books, magazines, movies and proper nouns are also capitalized. Every sentence must end with a punctuation mark, such a... More » Education
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A few basic rules for comma usage include the use of commas to separate independent clauses in a sentence and the use of commas after introductory clauses or phrases. Another basic rule is the use of commas after introdu... More » Education

Grammatical rules for the use of commas are extensive but include using commas to separate words in a series of three or more, using commas to separate two adjectives when they are interchangeable, and using a comma afte... More » Education

The most common uses for apostrophes are to show possession of objects by nouns and to indicate omitted letters in common contractions. Other uses for apostrophes include indicating omitted numbers, designating plural po... More » Education

The EM dash (—) is a punctuation mark that is used is the place of commas, parentheses or colons. The EM dash is sometimes confused with the EN dash (–) or the hyphen (-), but it serves a separate purpose. More » Education