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Use “therefore” to show cause and effect. Replace parallel meaning transition words and phrases with “therefore. Include “therefore” to improve sentence flow.
“Therefore” will not work in all sentences. It has a very specific meaning and is only appropriate to use in certain situations. The best way to remember when it is appropriate to use "therefore" in a sentence is to consider if you are using it to show cause and effect. In other words, does the first statement lead to or cause the other statement? If not, then “therefore” is probably not appropriate for that sentence.  For example, use “therefore” to show the cause and effect relationship between these two statements: “John studied hard for the math exam. He got an A+.” Your revised sentence would read: "John studied hard for the math exam. Therefore, he got an A+.” Another example might be, "People who exercise regularly enjoy better health. You should exercise." Adding "therefore" will improve the flow between these two ideas as well. "People who exercise regularly enjoy better health. Therefore, you should exercise." ” “Therefore” may be used to replace some other words and phrases, but it is important to check the meaning first. Not all transition words and phrases can stand in for "therefore."  For example, "Sally passed her drive test. As a result, she received her driver's license." You can replace "as a result" with "therefore" because it has the same meaning as this phrase. Don’t use “therefore” in place of a coordinating conjunction in most cases. Coordinating conjunctions include the words for, and, nor, but, or, yet, and so. Each of these terms has a specific meaning and they are not interchangeable with each other or with “therefore.” Always check the meaning of a word or phrase before you use it in a sentence. Including the word “therefore” in your writing is a great way to improve the flow of your writing. A sentence or paragraph may sound choppy without transitions, but adding a transition word like "therefore" can help to eliminate that choppiness. Try reading your work out loud to find places where you might need a transition, and then check to see if “therefore” could work in that instance. For example, these sentences sound choppy as is: “The weather was hot. He wore shorts and a T-shirt to school.” However, adding a transition word like “therefore” improves the flow: “The weather was hot. Therefore, he wore shorts and a T-shirt to school.”