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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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which is that

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "which is that" is correct and can be used in written English.
It is used to introduce a direct quotation, usually in conversation. For example: He said that he would be willing to help, which is that "I'm happy to do whatever I can to assist with the project".

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

ATKINS -- It's that enthusiasm, which is that thing about America.

News & Media

The New York Times

None questioned the essential premise of the report, which is that numbers matter.

News & Media

The New York Times

But they're very good students of what they've been taught, which is that men make knowledge.

News & Media

The New Yorker

The point of all of which is that jewelry is never an investment.

News & Media

Vice

STRP's exhibition presented nine of his intriguing works, one of which is that nightmare above.

News & Media

Vice

It's also in keeping with a central tenet of acupuncture, which is that change is good.

News & Media

Huffington Post

This title highlights the recurring theme in all defence theories, which is that defence is costly.

Best of which is that it's cheaper.

"Which is that you haven't a clue".

KGM: Which is that there's no relationship.

News & Media

Independent

Which is? "That there are too many immigrants".

News & Media

The Guardian
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Expert writing Tips

Best practice

Ensure the clause following "which is that" directly relates to and clarifies the preceding statement. Avoid using it to introduce unrelated or tangential information.

Common error

Avoid using "which is that" to introduce information that doesn't directly clarify the preceding statement. This can lead to confusion and disrupt the flow of your writing. Ensure a clear and logical connection between the two clauses.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

88%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "which is that" functions as a connector, specifically used to introduce a clause that explains or clarifies a previous statement. It serves to provide additional information, definition, or context, as seen in Ludwig's examples.

Expression frequency: Very common

Frequent in

News & Media

68%

Science

12%

Formal & Business

7%

Less common in

Reference

5%

Wiki

4%

Encyclopedias

0%

Ludwig's WRAP-UP

The phrase "which is that" is a grammatically correct connector used to introduce explanatory clauses. Ludwig AI confirms its proper use in written English. It is most commonly found in news and media contexts, serving to clarify preceding statements and enhance understanding. While versatile, it's important to use it judiciously to avoid redundancy or introducing unrelated information. Alternatives such as "that is to say" or "namely" can be considered for stylistic variation. Overall, "which is that" is a valuable tool for clear and effective communication.

FAQs

How can I use "which is that" in a sentence?

The phrase "which is that" is used to introduce a clarification or explanation of a preceding statement. For example, "The main problem is funding, which is that without enough money, the project can't move forward."

What are some alternatives to using "which is that"?

You can use alternatives like "that is to say", "namely", or "in other words" depending on the context.

Is it always necessary to use "that" after "which is"?

While grammatically correct, the use of "that" after "which is" isn't always necessary. Omitting "that" can sometimes make the sentence flow more smoothly, but including it adds emphasis to the explanation.

What is the difference between "which is" and "which is that"?

The phrase "which is that" is used to introduce a more detailed explanation or restatement, whereas "which is" can simply add descriptive information. Compare: "The car, which is red, is fast" versus "The problem, which is that it won't start, is a major concern".

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Source & Trust

88%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: