Look at the following sentence.
- I saw a teacher who cares.
The author may have wanted to write–
- I saw a teacher. Who cares?
Using periods–and other forms of punctuation–and knowing when to end a sentence are very important. If you don’t end a sentence appropriately, the intended meaning can be changed, or it can be misunderstood. Sometimes the meaning is simply incomprehensible.
When a person learns to write English sentences, essays, stories, and compositions, one common problem is writing sentences that are too long.
Another problem is sentences that are too short. When a sentence ends too quickly, it is called a sentence fragment, (i.e., it doesn’t have a subject and a verb, which are the two main ingredients of a complete sentence).
When a sentence has too many ideas, runs on too long, or is two sentences hooked together, it is called a run-on sentence. If you have this problem, don’t worry. It’s easy to fix.
The first thing you need to do is identify when a sentence is a run-on. A run-on (or run-on sentence) is a sentence that really has two sentences–or two complete ideas–incorrectly combined into one. It’s okay to combine two sentences into one, but you must follow some rules.
You might be wondering: “What is a sentence?” A sentence consists of 3 things:
1 subject the person, place, or thing performing or doing the action
2 verb the action
3 complete idea the reader isn’t left waiting for another word
Take a look at this sentence:
I threw the ball.
Subject=I
Verb=threw
I threw … what? The ball.
Is it a complete idea? Yes.
Therefore, this is a good sentence.
The ball is a direct object. Not all sentences require a direct object. For example
Horses gallop.
Subject=horses
Verb=gallop
Is it a complete idea? Yes.
There is no direct object here; however, it is still a complete idea and a good sentence.
Here’s another example.
Subject=I
Verb=take
Is it a complete idea? No. I take…what? The “what” is missing.
This sentence needs a direct object. (This sentence is called a sentence fragment.) The verb determines whether the sentence requires a direct object or not. If the sentence needs a direct object, it is called a transitive verb. If the verb doesn’t need a direct object, it is called an intransitive verb. If you are unsure about some verbs, use a dictionary. Dictionaries often denote transitive and intransitive verbs with the initials t.v. and i.v., respectively.
Here’s one more example.
| Brandon takes the train to school Jeremy rides the bus. |
|
Subject=Brandon and Jeremy
Verb=takes and rides
Is it a complete idea? It is two complete ideas.
This last example is a run-on sentence: These two complete sentences–or ideas–are incorrectly combined. The sentence lacks signal words that lets the reader know when to stop or pause. A part of a sentence that can be a sentence by itself is called an independent clause. This last example has two independent clauses.
Summary
If you put two sentences (or independent clauses) together without a sufficient amount of signals–such as commas, semicolons, or connecting words–you have created a run-on.
How do you fix run-ons?
There are four common ways to fix a run-on. Each method is explained below.
Method #1
Write the two independent clauses as separate sentences using periods.
- INCORRECT KeYanna loved traveling in Italy she felt Rome was too hot.
- CORRECT KeYanna loved traveling in Italy. She felt Rome was too hot.
Method #2
Use a semicolon to separate the two independent clauses. If you would like to learn more about semicolons.
- INCORRECT KeYanna loved traveling in Italy she felt Rome was too hot.
- CORRECT KeYanna loved traveling in Italy; she felt Rome was too hot.
Method #3
Use a comma and any one of the following connecting words: for* and nor but or yet so**
*when for means because
**when so means as a result
- INCORRECT KeYanna loved traveling in Italy she felt Rome was too hot.
- CORRECT KeYanna loved traveling in Italy, but she felt Rome was too hot.
Method #4
Use a semicolon and one of the following words:
therefore, thus, however, consequently,furthermore, also, nevertheless,
NOTE: If you use any of these connecting words with method #4, a comma must follow it.
- INCORRECT KeYanna loved traveling in Italy she felt Rome was too hot.
- CORRECT KeYanna loved traveling in Italy; however, she felt Rome was too hot.
NOTE: When using semicolons, the two independent clauses must share a related or common idea. You cannot write the following sentence.
- Sophia loves hot chocolate; Deanna is watching TV. (WRONG!)
- The two clauses above are completely unrelated.
Quiz
Directions: The following sentences are all run-ons. Correct them using any of the four methods. There may be more than one correct answer.
1. The girls played baseball the boys played basketball.
2. Einstein is famous for E=mc² Bessimer is famous for the invention of steel.
3. The Count of Monte Cristo is my favorite movie I love eating pizza.
4. Americans shake hands when they meet the Japanese bow.
5. Mother’s Day is always on a Sunday Thanksgiving is always on a Thursday.
6. Trevor loved visiting London Larcen preferred just to stay in Ponca City.
7. My roadster broke down I need to buy a new radiator.
8. At one time few people had enough money to buy books few people could read books.
9. Aaron wants to learn German Robert wants to learn Gaelic.
10. People love peace they despise war.
Work out the problems above, and then compare your solutions with the ones below:
1. The girls played basketball the boys played tennis.
Answers:
The girls played baseball. The boys played basketball
The girls played baseball;the boys played basketball.
The girls played baseball, but the boys played basketball.
The girls played baseball; however, the boys played basketball.
2. Einstein is famous for E=mc² Bessimer is famous for the invention of steel.
Answers:
Einstein is famous for E=mc². Bessimer is famous for the invention of steel.
Einstein is famous for E=mc²; Bessimer is famous for the invention of steel.
Einstein is famous for E=mc², but Bessimer is famous for the invention of steel.
Einstein is famous for E=mc²; however, Bessimer is famous for the invention of steel.
3. The Count of Monte Cristo is my favorite movie I love eating pizza.
Answers:
The Count of Monte Cristo is my favorite movie. I love eating pizza.
This sentence cannot be fixed with the other methods because the two independent clauses do not share similar or related ideas.
4. Americans shake hands when they meet the Japanese bow.
Answers:
Americans shake hands when they meet. The Japanese bow.
Americans shake hands when they meet; the Japanese bow.
Americans shake hands when they meet, but the Japanese bow.
Americans shake hands when they meet; however, the Japanese bow.
5. Mother’s Day is always on a Sunday Thanksgiving is always on a Thursday.
Answers:
Mother’s Day is always on a Sunday. Thanksgiving is always on a Thursday.
Mother’s Day is always on a Sunday; Thanksgiving is always on a Thursday.
Mother’s Day is always on a Sunday, and Thanksgiving is always on a Thursday.
Mother’s Day is always on a Sunday; however, Thanksgiving is always on a Thursday.
6. Trevor loved visiting London Larcen preferred just to stay in Ponca City.
Answers:
Trevor loved visiting London. Larcen preferred just to stay in Ponca City.
Trevor loved visiting London; Larcen preferred just to stay in Ponca City.
Trevor loved visiting London, but Larcen preferred just to stay in Ponca City.
Trevor loved visiting London; nevertheless, Larcen preferred just to stay in Ponca City.
7. My roadster broke down I need to buy a new radiator.
Answers:
My roadster broke down. I need to buy a new radiator.
My roadster broke down; I need to buy a new radiator.My roadster broke down, so I need to buy a new radiator.
My roadster broke down; therefore I need to buy a new radiator.
8. At one time few people had enough money to buy books few people could read books.
Answers:
At one time few people had enough money to buy books. Few people could read books.
At one time few people had enough money to buy books; few people could read books.
At one time few people had enough money to buy books, and few people could read books.
At one time few people had enough money to buy books; also, few people could read books.
9. Aaron wants to learn German Robert wants to learn Gaelic.
Answers:
Aaron wants to learn German. Robert wants to learn Gaelic.
Aaron want to learn German; Robert wants to learn Gaelic.
Aaron wants to learn German, and Robert wants to learn Gaelic.
Aaron wants to learn German; however, Robert wants to learn Gaelic.
10. People love peace they hate war.
Answers:
People love peace. They hate war.
People love peace; they hate war.
People love peace, but they hate war.
People love peace; however, they hate war.
Rules to Remember!
The above sentences are all examples of two independent clauses forming run-on sentences. Sometimes three or more independent clauses are inappropriately written together, and the result is a very long run-on sentence. We suggest that in these types of situations, use a combination of the above methods. Take a look at the example below.Orville and Wilbur Wright had a bicycle-making business in Ohio they loved experimenting with flying machines they built the Wright Flyer in 1903.
This sentence is a run-on with three independent clauses. We can use various combinations of the above methods to fix the problem. By applying methods 4 and 1, we get Orville and Wilbur Wright had a bicycle-making business in Ohio; however, they loved experimenting with flying machines. They built the Wright Flyer in 1903.
Don’t string several independent clauses together with semicolons. The following example is usually not written.
Orville and Wilbur Wright had a bicycle-making business in Ohio; they loved experimenting with flying machines; they built the Wright Flyer in 1903.
Some people may ask, “Which of the above methods is best?” That answer is not so simple. Sometimes any of the methods are equally correct; at other times, only one or two methods may truly be appropriate for a situation. This knowledge will come as the writer reads a variety of English material. Also, don’t overuse any one method. Correctly using different methods often shows good writing. When a person first learns to write, he/she uses method 1 extensively. It is important for the writer to go beyond method 1 and use the other methods. This will show a maturity in the author’s writing.