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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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must not fall

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "must not fall" is correct and usable in written English.
It can be used to indicate a prohibition or a strong recommendation against something happening, often in contexts related to rules, safety, or expectations. Example: "In this competition, participants must not fall below the required standards to qualify for the next round."

✓ Grammatically correct

News & Media

Formal & Business

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

India must not fall into that trap.

News & Media

The Economist

must not fall asleep.

Iraq must not fall into their trap.

We must not fall into that trap.

Friendly critics must not fall into the government's error.

News & Media

The Guardian

The investigation's findings must not fall on deaf ears.

News & Media

The New York Times

But the burden must not fall only on the general.

News & Media

The Economist

Marcie Trier is correct in thinking that his game must not fall off.

However, the national living wage must not fall victim to Brexit.

Identification of child abuse must not fall solely on the shoulders of government agencies.

News & Media

The New York Times

The arts must not fall prey to divide-and-rule politics.

Show more...

Expert writing Tips

Best practice

Use "must not fall" to express a critical necessity to avoid a negative outcome. Ensure the context clearly defines what 'falling' entails, whether it's a standard, a structure, or a principle.

Common error

While "must not fall" is versatile, avoid using it in overly casual conversations where a simpler phrase like "shouldn't drop" or "can't fail" would be more appropriate. Reserve it for situations where the stakes are genuinely high.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

87%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "must not fall" functions as a modal expression of prohibition and necessity. According to Ludwig AI, it conveys a strong obligation to prevent a specific negative outcome. Examples from Ludwig show its use in contexts ranging from preventing countries from falling into traps to maintaining standards of care.

Expression frequency: Very common

Frequent in

News & Media

80%

Formal & Business

10%

Science

10%

Less common in

Wiki

0%

Encyclopedias

0%

Social Media

0%

Ludwig's WRAP-UP

The phrase "must not fall" is a grammatically correct and frequently used expression to convey a strong obligation to prevent something negative from happening. Ludwig AI confirms its validity and widespread usage across various reputable sources. The phrase is most commonly found in News & Media, Formal & Business, and Science contexts. When writing, remember that while versatile, reserve it for situations where a crucial principle, structure, or standard needs to be upheld. Alternatives include "should not collapse" or "must be prevented from failing", but "must not fall" is still a great way to get your idea across, while also keeping it as clear as possible.

FAQs

How can I use "must not fall" in a sentence?

The phrase "must not fall" is used to indicate that something is essential to prevent. For example, "The investigation's findings "must not fall" on deaf ears."

What are some alternatives to the phrase "must not fall"?

Depending on the context, you can use phrases like "must not fail", "should not decline", or "cannot be allowed to fail".

What does it mean when something "must not fall"?

When something "must not fall", it means it is imperative to prevent it from failing, collapsing, or declining. This often implies that serious consequences would result if it were to happen.

In what situations is it appropriate to use the phrase "must not fall"?

It is appropriate to use "must not fall" in situations where you want to emphasize the critical importance of preventing something from declining or failing, such as upholding standards, protecting principles, or avoiding negative consequences.

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Source & Trust

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Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: