The period is used to end all sentences except those that are direct questions or exclamations. Periods are also used in abbreviations.
1. Use a period to end a declarative or imperative sentence.
- A declarative sentence makes a statement.
All is fair in love and war.
- An imperative sentence issues a request or command.
Please do not leave until you have said good-bye.
- Do not use a period if the sentence is a genuine exclamation. Use an exclamation point.
That speech was fantastic!
- Do not use a period with a sentence that asks a direct question. Use a question mark.
Will the picnic be canceled?
- However, do use a period if the sentence is a statement reporting a question indirectly.
Sara asked if the picnic would be canceled.
2. Use a period in certain abbreviations.
- The following are examples of some abbreviations which use periods:
||A.M. or a.m.
||P.M. or p.m.
- Do not use a period with U.S. Postal Service abbreviations for states.
Long Beach, CA
- Do not use a period with most abbreviated names of organizations or with commonly used abbreviations that replace words.
- However, sometimes usage varies, such as in the abbreviation USA or U.S.A., both of which are acceptable. When in doubt, consult a dictionary or style manual, or a publication by the agency or group in question.
- If a sentence ends with a period marking an abbreviation, do not add a second period.
You will need to bring your own towels, sheets, blankets, pillows, etc.