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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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that's

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "that's" is correct and usable in written English.
It is a contraction of "that is" or "that has" and can be used in various contexts to provide clarification or emphasis. Example: "I can't believe that's the final decision on the project."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Good boy, that's fantastic.

E: Yeah, that's fun.

That's Jenike".

That's important.

That's good.

That's easy.

That's great.

That's ethnography.

Science

Rice

That's it.

That's science".

"That's the whole point though, that's science.

Show more...

Expert writing Tips

Best practice

Use "that's" in informal writing and speech to create a conversational tone. Avoid in formal academic papers.

Common error

Avoid using "that's" when you should be using "those". "That's" is a contraction of "that is" or "that has", while "those" is a plural demonstrative pronoun.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

80%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The primary function of "that's" is to express agreement, confirmation, or affirmation. As a contraction of "that is", it often serves as a concise way to acknowledge or validate a statement or situation. Ludwig provides numerous examples illustrating its use in diverse contexts.

Expression frequency: Very common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Academia

0%

Ludwig's WRAP-UP

In summary, the phrase "that's" is a grammatically sound contraction of "that is" or "that has", commonly used in spoken and written English to express agreement, confirmation, or explanation. Ludwig AI indicates its frequent occurrence, particularly within scientific contexts. While generally informal, "that's" is versatile, but should be used cautiously in formal writing where expanding the contraction may be more appropriate. Be mindful not to confuse it with "those", a plural demonstrative pronoun.

FAQs

What's the difference between "that's" and "that is"?

"That's" is a contraction of "that is". Using "that's" is generally more informal, while "that is" is more formal and suitable for academic or professional writing.

When should I use "that's" versus "that has"?

Use "that's" when you mean "that is", like in "That's a great idea!". When you mean "that has", such as "The company that's been struggling", also use "that's". The context usually makes the meaning clear.

Are there situations where I should avoid using "that's"?

Yes, avoid using "that's" in formal writing, such as academic papers or business reports. In these cases, it's better to use the full form, "that is" or "that has", to maintain a professional tone.

What are some alternatives to using "that's" in a sentence?

Depending on the context, you can use phrases like "that is", "indeed", "certainly", or rephrase the sentence to avoid the contraction altogether.

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Most frequent sentences: