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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
CEO of Professional Science Editing for Scientists @ prosciediting.com
must be deleted
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "must be deleted" is correct and usable in written English.
It can be used when indicating that something should be removed or erased, often in the context of editing or revising text. Example: "Any sensitive information found in the document must be deleted before sharing it with others."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(20)
needs to be removed
should be eliminated
is subject to cancellation
must be dismantled
must be denied
must be annihilated
must be reconsidered
must be removed
must be withheld
must be altered
must be lifted
must be liquidated
must be deducted
must be demolished
must be discontinued
must be replicated
must be overridden
must be inserted
must be eradicated
must be obliterated
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
39 human-written examples
For a fixed system property (i.e., a value or a range of values for a performance metric), a node-deletion problem aims to find the minimum number of nodes which must be deleted from a given system so that the result satisfies the property.
Another, independent locus must be deleted or mutated in line A6, which acts synergistically with the SACPD-C deletion to elevate seed stearic acid from ~12.5% to ~28%.
Science
The court said all data stored must be deleted immediately.
News & Media
This information must be deleted before public confidence in the police takes yet another hit".
News & Media
Names, addresses, social security numbers and military service numbers must be deleted.
Academia
But the O.E.D. is not unlike a game of musical chairs, and in order for "Yogalates" to make it in, another word must be deleted.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
21 human-written examples
Any historical viewing data collected to date must also be deleted, the proposed order says.
News & Media
For e.g. Consider an enterprise for travel LCS has four services as: get_userdetails, bk_fight, bk_cab and sms_initimation, if the analyst attempts to delete the get_userdetails, then the parser with the help of the information provided in the SDT will forecast and suggest that the service must not be deleted.
However, this situation is not the same in Europe since a year ago, in a landmark case known as Google v Costeja, a decision was handed down by the European Union's highest court, the Court of Justice of the European Union, in Luxembourg on May 13 , 2014 [1] in which the Court ruled that such defamation must immediately be deleted by Google.
News & Media
GSF must therefore be deleted in R025.
Science
In order to synthesize BDO, LDH must also be deleted, which leads to the construction of strain YIM (Table 2).
Science
Expert writing Tips
Best practice
In legal or policy documents, ensure that the reasons for requiring deletion are well-defined and legally justifiable to avoid ambiguity.
Common error
While "must be deleted" is grammatically sound, overuse of the passive voice can make your writing sound weak or indirect. Consider active voice alternatives where appropriate to add clarity and impact. For example, instead of "the file must be deleted", you could write "you must delete the file".
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "must be deleted" functions as a directive in the passive voice. It indicates a mandatory action that needs to be performed on a specific object or piece of information. As Ludwig highlights, it's grammatically correct and widely applicable.
Frequent in
News & Media
30%
Science
30%
Academia
20%
Less common in
Wiki
10%
Formal & Business
5%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "must be deleted" is a directive, passive voice construction indicating a mandatory removal or erasure. As Ludwig AI confirms, it's grammatically correct and widely used across various contexts, including news, science, and academia. While effective in conveying the necessity of deletion, be mindful of overusing the passive voice and consider active voice alternatives for clarity. This analysis is based on a wide array of sources, demonstrating the phrase's versatile application in formal, neutral, and even informal registers.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
needs to be removed
Focuses on the necessity of removal, similar to deletion.
has to be erased
Emphasizes the act of erasing or wiping out something.
should be eliminated
Indicates a recommendation or strong suggestion for removal.
is required to be purged
Suggests a thorough cleansing or removal is necessary.
is to be discarded
Highlights the act of throwing away or rejecting something.
warrants obliteration
Emphasizes complete destruction or wiping out.
demands to be excised
Implies surgical precision in removal.
calls for removal
Indicates a demand or need for something to be taken away.
is subject to cancellation
Focuses on the termination or annulment of something.
is up for abolishment
Suggests the potential for a formal end or termination.
FAQs
How can I use "must be deleted" in a sentence?
You can use "must be deleted" to indicate that something needs to be removed or erased. For instance, "Any sensitive information found in the document "must be deleted" before sharing it with others".
What are some alternatives to "must be deleted"?
Alternatives include "needs to be removed", "has to be erased", or "should be eliminated", depending on the context.
When is it appropriate to use the phrase "must be deleted"?
It's appropriate when you want to clearly state that something requires immediate and necessary removal, often due to policy, security, or legal reasons.
Is "must be deleted" the same as "should be deleted"?
While similar, "must be deleted" implies a stronger requirement or obligation than "should be deleted". The former suggests a mandatory action, whereas the latter is a recommendation.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested