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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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both two kinds of

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "both two kinds of" is not correct and is redundant in written English.
You can use "both" or "two kinds of," but not together, as "both" already implies two. Example: "There are two kinds of fruit available: apples and oranges."

⚠ May contain grammatical issues

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

8 human-written examples

Scanning electron microscopy images show that both two kinds of samples possess nanoporous structures.

Both two kinds of catalysts have the maximum methane conversion when the Mo loading is 6%.

Both two kinds of nanoparticles were well-dispersed with diameters around 2 3 nm according to TEM.

Science

Polymer

Both two kinds of electrodes exhibit the best performance with 10 cycles of CdS QD deposition, and the efficiency decreases with further increasing deposition cycles.

Both two kinds of risk were combined with ecological functional importance, which was composed of habitat quality and landscape connectivity, so as to quantify the comprehensive reserve value of ecological land to identify the ecological security sources.

DSC and WAXS analyses suggested that, for both two kinds of the blend films, the addition of O-CMCh did not significantly influence the crystallinity and thermal properties of cellulose.

Science

Polymer
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Human-verified similar examples from authoritative sources

Similar Expressions

51 human-written examples

Both four kinds of forces (moments) between rings and shell and four kinds of forces (moments) between bulkheads and shell are considered.

We advocate a careful placement of the controllers, which should take into account both the two kinds of control traffic.

It was found that the maximum overpressures increased with the growth of distance from the ignition point both in the two kinds of pipes.

To see how it works, imagine two countries, East and West, which both produce two kinds of goods, bicycles and wheat.

News & Media

The Economist

Kumārila, like Naiyāyikas, holds both the two kinds of perception as valid.

Science

SEP
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Expert writing Tips

Best practice

Avoid redundancy by choosing either "both" or "two kinds of", but not both together. For example, use "both types" or "the two kinds" depending on the context.

Common error

Don't use "both" and "two kinds of" together. This creates unnecessary repetition. Choose one or the other for clearer writing.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

83%

Authority and reliability

2.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "both two kinds of" functions as a determiner phrase, attempting to specify and quantify a set of categories. However, Ludwig AI indicates this construction is grammatically incorrect due to redundancy.

Expression frequency: Uncommon

Frequent in

Science

63%

News & Media

25%

Encyclopedias

12%

Less common in

Formal & Business

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "both two kinds of" is grammatically incorrect due to its redundant nature. Ludwig AI flags this as an error, suggesting that either "both" or "two kinds of" should be used independently to avoid repetition. While there are some examples of the phrase in use, particularly in scientific and news-related contexts, it's important to opt for clearer, more concise phrasing. Alternatives such as "both types of" or "the two kinds of" offer grammatically sound ways to convey the intended meaning.

FAQs

How can I correctly express the idea of two different types or categories?

Instead of "both two kinds of", use either "both types of", "the two kinds of", or simply "two types of" depending on your context.

Is it grammatically correct to say "both two kinds of"?

No, the phrase "both two kinds of" is grammatically incorrect because it's redundant. The word "both" already implies that there are two, so it's unnecessary to include "two kinds of".

What's the difference between "both kinds of" and "two kinds of"?

The phrases "both kinds of" and "two kinds of" are very similar. "Both kinds of" is typically used when referring to two specific, previously mentioned types. "Two kinds of" simply indicates that there are two types without necessarily implying they were already mentioned.

What are some alternatives to the phrase "both two kinds of" that avoid redundancy?

Alternatives include using "both types of", "the two kinds of", or simply "two types of". The best choice depends on the specific context and intended emphasis.

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Source & Trust

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Authority and reliability

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Expert rating

Real-world application tested

Most frequent sentences: