Used and loved by millions
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
can be locked up
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "can be locked up" is correct and usable in written English.
It can be used in contexts where something or someone is capable of being secured or confined, either physically or metaphorically. Example: "The sensitive documents can be locked up in a safe to ensure their security."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(3)
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
21 human-written examples
People can be locked up in them without trial for up to four years.
News & Media
"They can't vote, and they can be locked up without committing a crime.
News & Media
In this country, children can be locked up even if they have committed no crime.
News & Media
"The government's position that one can be locked up for decades for expressions of political positions on the telephone," he said, "amounts to simple thought control".
News & Media
"It sends a message that journalists can be locked up for simply doing their job, for telling the truth and reporting the news.
News & Media
Smith has taken over the role of bingo caller from Commissioner Tony Blair, selecting random numbers of days that people can be locked up without charge.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
39 human-written examples
The army accuses the former separatists' party, Partai Aceh, of continuing to espouse independence.Separatists in restive regions such as Papua and Maluku can still be locked up for unfurling flags, as they were after a demonstration in Papua in March; four Dutch journalists were briefly detained for covering that episode.
News & Media
It's a situation unique to Europe: only in Britain can you be locked up for the non-crime of a failed asylum application, with no idea of when you might be released.
News & Media
However the law has major shortcomings, according to Human Rights Watch (HRW), which says it fails to close loopholes that mean mentally ill people can still be locked up against their will with no recourse.
News & Media
Are we saying that someone against whom there is no evidence can and should be locked up indefinitely?
News & Media
The document allows freedom of thought and speech (until it is law, you can still technically be locked up for criticising the king); a two-party electoral system, and a mandatory retirement age for the monarch of 65: the king is 49.
News & Media
Expert writing Tips
Best practice
When using "can be locked up" in formal writing, consider whether a more precise term like "detained" or "imprisoned" would be more appropriate.
Common error
Avoid using "can be locked up" metaphorically when a more nuanced term would better convey the intended meaning. Overusing it can diminish the impact of the phrase.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "can be locked up" functions as a modal passive construction. It indicates the possibility or permissibility of someone or something being confined or secured. Ludwig examples show it used in both literal (physical confinement) and metaphorical (secured data) contexts.
Frequent in
News & Media
67%
Wiki
17%
Science
16%
Less common in
Formal & Business
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "can be locked up" is a common and grammatically sound expression used to indicate the possibility of confinement or secure storage. Ludwig AI affirms its correctness and usability. It appears most frequently in News & Media sources. Related phrases include "can be imprisoned" and "can be detained". When writing, it's best to reserve the phrase for literal confinement unless the metaphorical usage is clear and effective. The phrase's versatility makes it a useful tool, but careful consideration of context is key to precise communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
can be imprisoned
Direct synonym, focusing on legal consequence and imprisonment.
can be detained
Implies a temporary holding, often by authorities.
can be confined
Broader term suggesting restriction to a space.
can be incarcerated
Formal term for imprisonment, emphasizing the institutional aspect.
can be held captive
Suggests involuntary confinement and loss of freedom.
can be secured
Focuses on the act of making something safe or inaccessible.
can be put behind bars
Idiomatic expression for imprisonment.
can be taken into custody
Emphasizes the act of being apprehended by law enforcement.
can be interned
Suggests confinement during wartime or for political reasons.
may be placed in custody
Indicates the potential for official detention.
FAQs
How to use "can be locked up" in a sentence?
You can use "can be locked up" to describe the possibility of someone or something being confined or secured. For example, "Documents "can be locked up" in a safe" or "Individuals "can be locked up" for committing crimes".
What can I say instead of "can be locked up"?
Alternatives include "can be imprisoned", "can be detained", or "can be confined", depending on the context.
Which is correct, "can be locked up" or "can locked up"?
"Can be locked up" is the correct phrasing. "Can" requires the auxiliary verb "be" before the past participle "locked up" to form the passive voice.
What's the difference between "can be locked up" and "must be locked up"?
"Can be locked up" indicates a possibility or permissibility, while "must be locked up" implies a necessity or obligation. "Can" suggests it is possible, while "must" suggests it is required.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested