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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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both does

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "both does" is not correct in standard written English.
It is typically used incorrectly as "both" implies two subjects, while "does" is singular. Example: "Both does not apply to this situation."

⚠ May contain grammatical issues

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

33 human-written examples

David, a writer about to have his first novel published, is in New York meeting his agent and editor when he has a run-in with a man at Penn Station – a man David both does and doesn't recognise and who says simply "Remember me".

True independence, you see, both does, and doesn't, come cheap.

Sculpture both does and doesn't take up space in the show.

The impulse both does us proud and gets us into trouble.

He is especially illuminating on the nebulous concept of race, how it both does and doesn't exist.

The answer, I think, has to do with the way the dog both does and doesn't stand in for the human being..

News & Media

The New Yorker
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Human-verified similar examples from authoritative sources

Similar Expressions

27 human-written examples

ALB: You both did this?

News & Media

The Guardian

Presidents Harry Truman and Dwight Eisenhower both did it.

Hall and Patten both don't know.

News & Media

The Guardian

Tom Petty and Jon Mellencamp both did it.

News & Media

Vice

They both did.

News & Media

The New Yorker
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Expert writing Tips

Best practice

When referring to two subjects performing an action, ensure you use the plural form of the verb. For instance, instead of saying "both does", use "both do".

Common error

Avoid using the singular verb form "does" with "both", as "both" implies two subjects and requires a plural verb form like "do". For example, it's incorrect to say "both does"; the proper form is "both do".

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

2.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "both does" functions as a conjunction phrase attempting to link two subjects to an action. However, it's grammatically flawed. As Ludwig AI points out, the singular verb form "does" doesn't agree with the plural "both".

Expression frequency: Uncommon

Frequent in

News & Media

33%

Science

33%

Academia

17%

Less common in

Wiki

8%

Encyclopedias

0%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, while the phrase "both does" appears in some contexts, it's grammatically incorrect because "both" requires a plural verb form. Ludwig AI highlights this error. Correct alternatives like "both do" or "they both do" ensure grammatical accuracy and clearer communication. Although, not recommended in formal writing, this incorrect form still appears, even on high quality sources. Always prioritize grammatically sound alternatives for professional or academic writing.

FAQs

Why is "both does" considered grammatically incorrect?

The phrase "both does" is considered grammatically incorrect because "both" is plural and requires a plural verb form. The correct phrasing would be "both do", where "do" is the plural form of the verb.

What's the difference between "both do" and "each does"?

"Both do" indicates that two entities are performing the same action together or in a similar manner. "Each does" suggests that individual members of a group perform an action separately. Consider the nuance when choosing which is most fitting.

In what contexts might I see "both does" used, even though it's grammatically incorrect?

Although grammatically incorrect, "both does" might appear in informal speech or writing where strict grammatical rules are not always followed. However, in formal writing, it's best to use "both do" or other grammatically correct alternatives.

Are there situations where "both does" could be considered acceptable?

No, "both does" is generally not considered acceptable in standard English. There might be very specific, non-standard dialects where it appears, but in formal or professional contexts, "both do" should always be used.

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Source & Trust

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Authority and reliability

2.8/5

Expert rating

Real-world application tested

Most frequent sentences: