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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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either of those days

Grammar usage guide and real-world examples

USAGE SUMMARY

'either of those days' is correct and can be used in written English.
This phrase is used to indicate two distinct days that could be chosen from. For example: You can come visit me either of those days; Tuesday or Thursday.

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

2 human-written examples

I try not to sleep during the daytime on either of those days, although I want to.

News & Media

The New Yorker

Even if you're stuck at your desk, you stand to benefit: As The Wall Street Journal points out, the extra day in February means an extra Sunday and Monday in December 2012, meaning that employees whose paydays fall on either of those days will get an extra check for that year.

News & Media

Huffington Post

Human-verified similar examples from authoritative sources

Similar Expressions

58 human-written examples

The engineers of those days either knew or thought little about conservancy even as applied to the ports they constructed.

Ultimately, the dancer admitted, although she had not fallen victim to these crimes, the debt her mother expected from her for her lucky intuitions was so unreasonable, and had created so much anger, that she often wished she had not been spared on either of those horrible days.

News & Media

Vice

It was one of those days.

I have idyllic memories of those days.

News & Media

Independent

Wednesday was one of those days.

News & Media

The New York Times

This is just one of those days.

News & Media

The New York Times

"Today was one of those days".

Some days are one of those days".

Just one of those days.

News & Media

BBC
Show more...

Expert writing Tips

Best practice

When using "either of those days", ensure the context clearly identifies the two days being referenced to avoid ambiguity. For instance, precede the phrase with a direct statement of the days, like "We can meet on Monday or Tuesday; either of those days works for me."

Common error

Avoid using "any of those days" when you specifically mean one of two options. "Either" is for two, while "any" suggests a broader range.

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

4.1/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "either of those days" functions as a prepositional phrase, modifying a verb or noun by specifying a particular time. It indicates a choice between two specific days that have already been mentioned or are understood in the context. According to Ludwig, this usage is correct.

Expression frequency: Rare

Frequent in

News & Media

100%

Encyclopedias

0%

Formal & Business

0%

Less common in

Science

0%

Wiki

0%

Academia

0%

Ludwig's WRAP-UP

In summary, the phrase "either of those days" is a grammatically sound prepositional phrase used to indicate a choice between two specific days. Ludwig AI confirms its correctness. Though relatively rare in occurrence, it is primarily found in news and media contexts. When using this phrase, ensure the two days are clearly defined to avoid ambiguity. Be mindful not to confuse it with "any of those days", which implies more than two options. Alternatives include "on either day" or "on the specified days", depending on the desired level of formality.

FAQs

How can I use "either of those days" in a sentence?

Use "either of those days" to indicate a choice between two specific days, for example, "The event will be held on Friday or Saturday; you can attend on "either of those days"".

What phrases are similar to "either of those days"?

Similar phrases include "on either day", "on each of those days", or "on the specified days", depending on the nuance you want to convey.

Is it correct to say "any of those days" instead of "either of those days"?

While "any of those days" isn't inherently incorrect, it suggests more than two options. "Either of those days" is more precise when referring to a choice between exactly two days.

What's the difference between "either of those days" and "both of those days"?

"Either of those days" implies a choice of one day from two, whereas "both of those days" indicates that something applies to or occurs on both days.

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Source & Trust

85%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Most frequent sentences: