In English, there are four different kinds of sentences. In Unit 2, you learned the first type–the simple sentence. The second type is called the compound sentence.

What is a Compound Sentence?

compound sentence is two independent clauses that are joined together in one sentence. In other words, if you put two simple sentences together, you have a compound sentence. When we combine two clauses to make one sentence, we need to link the two ideas, and the easiest way to do that is with a coordinator and a comma. There are seven coordinators we can use to make a compound sentence: and, but, so, or, for, yet, nor

  • Simple Sentence
    • The musician walked onto the stage.
  • Simple Sentence
    • The crowd began to cheer.
  • Compound Sentence
    • The musician walked onto the stage, and the crowd began to cheer.
  • Simple Sentence
    • Sarah likes going out dancing with her friends.
  • Simple Sentence
    • She always feels terrible at school the next day.
  • Compound Sentence
    • Sarah likes going out dancing with her friends, but she always feels terrible at school the next day.

Coordinators give meaning to a sentence and explain the connection between the two clauses:

  • Students can improve their skills, and they can meet interesting people. (adds more information)
  • I really like Thai food, but I've never tried to cook it at home. (contrast)
  • He has been taking guitar lessons for a year, yet he cannot play the simplest song. (surprising contrast)
  • Many students are afraid to make a mistake, so they do not speak in class. (result)
  • You can find a job, or you can join the military. (option)
  • The man never forgot that mistake, for it changed his life. (reason) Formal
  • Students cannot use their smart phones during the exam, nor can they leave the room. (adds information to a negative sentence) Formal

Exercise

Open the exercise to begin the activity. Follow the instructions in the document.

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