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?

A 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 SentencesCompound Sentence

The musician walked onto the stage.

The crowd began to cheer.

The musician walked onto the stage, and the crowd began to cheer.

Sarah likes going out dancing with her friends.

She always feels terrible at school the next day.

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.

Exercise

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