3 End Marks: RulesAn end mark is a mark of punctuation place at the end of the sentence. English uses three kinds of end marks:the periodthe question markthe exclamation point
4 End Marks: Rules Use a period at the end of a sentence. The manatee is also called a sea cow.It is a mammal that lives in the ocean.Use a question mark at the end of a question.Have you ever seen a manatee?Did it look like a cow to you?Use an exclamation point at the end of an exclamation. This type of statement should show emotion.That’s amazing!Look! There’s a manatee over there.Use a period or an exclamation point at the end of a request or command.Please read this. (a request)Give me that! (a command)
5 End Marks: Rules Use a period after most abbreviations: Personal names: Joel H. Fairweather, M.E. GadskiTitles used with names: Mr., Mrs., Ms., Jr., Sr., Dr.States (except the two-letter abbreviations)Ark., Calif., Minn. but not MN, WI, IAAddresses: St., Ave., P.O. BoxOrganizations and Companies: Co., Inc., Corp., Assn.Times: A.M., P.M., B.C., A.D.NOTE: Most units of measure are abbreviated without periods. The exception is inch—in.
6 Classifying Sentences by Purpose Sentences can be classified in many ways; sentence type and sentence purpose are just two of them.A declarative sentence is a statement. Use a period.An interrogative sentence is a question. Use a question mark.An imperative sentence gives a command or a request. Use a exclamation point or a period.An exclamatory sentence shows emotion or strong feeling. Use an exclamation point.A conditional sentence expresses a wish using an If. . .then statement. Use a period.