- It is sunny and warm outside today.
- I will take the dog for a walk.
- Bob runs very quickly.
Punctuation marks are the symbols used in writing. They act like the traffic signs in writing. They tell us when to stop, slow down, or even when to pay attention to something. They make reading easier and writing better. It's important to be able to recognize punctuation marks and know how each one works.
The Period serves as a stop sign and tells us where a sentence ends and where the next one begins. It signals the end of declarative sentences (sentences which state facts or opinions) and commands that do not express great urgency. A period marks the end of a complete thought. Periods are also used in abbreviations of words, such as in Co. (company), St. (street), or U.S.A. (United States of America).
Rule 1: Use a period at the end of a statement.
Rule 2: Use a period in an abbreviation.
Rule 3: Use a period in an abbreviation.
Rule 4: Do not end a sentence with a period if the last word in the sentence ends with the period.
The handy chart below can help you remember the rules and uses of the period.