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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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this is because

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "this is because" is a valid and usable part of a sentence in written English.
You can use it to introduce a reason or explanation for something that has been previously mentioned. For example: I used to be afraid of the dark, but now I'm not. This is because I learned that darkness is just an absence of light.

✓ Grammatically correct

News & Media

Science

Academia

Wiki

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

This is because, well... everywhere is dangerous.

This is because, for, (3.4).

This is because, well, we can.

Part of this is because parties adapt.

News & Media

The New York Times

This is because nominations can take time.

News & Media

The Economist

This is because they did not exist).

News & Media

The New Yorker

This is because it can be "hyperpolarised".

News & Media

The Economist

This is because of transport constraints.

News & Media

The Economist

"This is because he is vulnerable.

News & Media

Independent

This is because Jeeves was his "butler".

News & Media

Independent

This is because governments wish to survive.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

Avoid overuse; while common, varying your sentence structure with alternatives can improve the overall readability and sophistication of your writing.

Common error

Avoid constructions like "The reason is because..." as they are redundant. Instead, choose either "The reason is..." or "This is because..." for clarity.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "this is because" functions as a causal connector, linking a statement to its explanation. Ludwig's examples illustrate its use in providing reasons for various phenomena, actions, or opinions. It serves to introduce a clause that explains why something is the case.

Expression frequency: Very common

Frequent in

News & Media

42%

Science

25%

Academia

10%

Less common in

Wiki

10%

Formal & Business

8%

Reference

5%

Ludwig's WRAP-UP

In summary, "this is because" serves as a versatile causal connector, widely used to introduce explanations across various contexts. As Ludwig AI confirms, it is grammatically sound and its frequency across diverse sources like news, science, and academia underscores its utility in written English. While effective, writers should avoid overuse and be mindful of potential redundancies to maintain clarity. Considering semantically similar options, like "this is due to" or "the reason for this is", can add variety to your writing.

FAQs

How can I use "this is because" in a sentence?

Use "this is because" to introduce an explanation or reason for a statement you've just made. For example, "I prefer tea over coffee; this is because I find the taste more soothing."

What phrases can I use instead of "this is because"?

You can use alternatives like "this is due to", "the reason for this is", or "that is why" depending on the context.

Is it grammatically correct to start a sentence with "this is because"?

Yes, it is grammatically correct to start a sentence with "this is because" when providing an explanation that directly follows or relates to a previous statement. However, ensure the connection is clear to avoid confusion.

What's the difference between "this is because" and "due to"?

"This is because" introduces a clause that explains a previous statement, while "due to" functions as an adjective, often followed by a noun or noun phrase. For example, "The delay was due to unforeseen circumstances" vs. "The delay occurred; this is because unforeseen circumstances arose."

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Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: