Can You Start a Sentence With “Therefore”?

Starting a sentence with “therefore” is correct in formal and informal English. The term “therefore” always relates to the previous sentence and shows what “happens” as a result of something. E.g., “He is always late. Therefore, we cannot rely on him.”

You can use the word “therefore” to connect clauses in a sentence. However, you can also use “therefore” at the beginning of a sentence.

You can use “therefore” to show the results, consequences, or conclusion of whatever you mentioned in the sentence before it.

  • The rain didn’t stop for 3 days. Therefore, the ground was saturated, and the riverbanks burst.

Here are some more examples of “therefore” in context:

  • We do not have the sales figures yet. Therefore, we do not know how we performed in Q2.
  • He has not applied for the post. Therefore, we can assume he isn’t interested.

We have covered the basics of starting a sentence with “therefore.” However, you should continue reading to learn more about using it in formal writing and discover synonyms to use instead of “therefore.”

Can You Start a Sentence With “Therefore” in Formal Writing?

You can begin sentences with the word “therefore” in formal writing, which commonly appears in essays and academic writing.

In academic writing, the word “therefore” is used to indicate the consequences or results of something. Due to its meaning, “therefore” always relates to previous information in a text.

Here are some examples of “therefore” in a formal context:

  • The results confirmed the predictions. Therefore, all hypotheses were proven to be correct.
  • We are no longer accepting handwritten applications. Therefore, all applicants should use the website.

The word “therefore” is formal, so synonyms are not necessary. However, if you do want to include other words to avoid repetition, you can choose from the following:

  • Accordingly
  • Consequently
  • Resultingly
  • Thus

Can You Start a Sentence With “Therefore” in Informal Writing?

You can start a sentence with the word “therefore” in informal writing.

However, because of its formality, “therefore” is more likely to appear in informal business emails than in informal messaging between friends and family.

Here are some examples of “therefore” in an informal context:

  • Gail is sick. Therefore, we have postponed the meeting until next week.
  • Brian has resigned. Therefore, we are looking for a new accountant.

In informal messaging, you would be more likely to use one of the following as an alternative to “therefore”:

  • For that reason
  • So
  • That’s why

Here are some examples of how you can use these three alternative words:

  • The car has a flat tire. So, I will call the mechanic.
  • She never apologized. That’s why I am not talking to her.
  • We are going to Hawaii tomorrow. For that reason, we can’t come to your wedding.