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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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can only be used when

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "can only be used when" is correct and usable in written English.
It is typically used to specify a condition or situation in which something is applicable or permissible. Example: "This tool can only be used when the system is in maintenance mode to ensure safety."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

49 human-written examples

Unfortunately, this method can only be used when the reflex mirror is down.

According to the revenue website, these powers "can only be used when investigating serious crime".

News & Media

The Guardian

Discount can only be used when purchasing a suit from D2K.co.uk.

News & Media

Independent

Please note that tutoring for core and Capital Markets & Investments can only be used when students are enrolled in those courses.

Johnson (1976) argues that eh can only be used when the assumptions associated with the sentence to which it is being added are weak.

This technique can only be used when lines are obvious, so for paintings where brushstrokes are made invisible, it is no help.

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Human-verified similar examples from authoritative sources

Similar Expressions

11 human-written examples

It can only be used, however, when an appropriate estimation of the force density is available.

Drivers and passengers must wear seatbelts, for example, and mobile phones can only be used hands-free when driving.

News & Media

The Economist

The major problem with wind power is that it is intermittent, so it can only be used to generate electricity when the wind is blowing strongly enough.

News & Media

The Guardian

Sputum smear microscopy has significant limitations because it can only be used to diagnose TB when sputum has sufficient bacillary load, and it cannot detect drug resistance.

Indeed, biomarkers can only be used to improve clinical outcome when used as a trigger for a specific intervention, or less commonly when used as a therapeutic target.

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Expert writing Tips

Best practice

When using "can only be used when", ensure that the condition following "when" is clear, specific, and directly relevant to the subject. This prevents ambiguity and strengthens the logical connection.

Common error

Avoid using overly broad conditions with "can only be used when". Ensure the condition is specific and measurable to avoid misinterpretations. For example, instead of saying "can only be used when necessary", specify the exact criteria that define necessity.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

82%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "can only be used when" functions as a conditional conjunction, linking an action or state to a specific condition that must be met for that action to be permissible or effective. It sets a clear restriction on usage.

Expression frequency: Very common

Frequent in

Science

41%

News & Media

33%

Academia

14%

Less common in

Wiki

9%

Formal & Business

3%

Reference

0%

Ludwig's WRAP-UP

The phrase "can only be used when" is a versatile conditional conjunction, commonly employed across scientific, media, and academic contexts to establish precise usage limitations. As Ludwig AI confirms, it’s grammatically correct and widely applicable, making it essential for clear and specific communication. When using this phrase, ensure the conditions are well-defined to avoid ambiguity. Alternatives like "is exclusively applicable if" can provide similar meanings with subtle differences in emphasis. Overall, mastering "can only be used when" enhances clarity and precision in writing.

FAQs

How to use "can only be used when" in a sentence?

Use "can only be used when" to specify the necessary condition for something to be applicable or permissible. For example, "This software "can only be used when" the user has administrator privileges".

What can I say instead of "can only be used when"?

You can use alternatives like "is exclusively applicable if", "is solely appropriate when", or "is permissible only under circumstances of" depending on the context.

Is it correct to say "can only use when" instead of "can only be used when"?

No, "can only use when" is grammatically incorrect. The passive form "can only be used when" is needed to properly convey that something is being acted upon, rather than performing the action.

What's the difference between "can only be used if" and "can only be used when"?

While similar, "can only be used if" emphasizes a condition that must be met, whereas "can only be used when" emphasizes the timing or situation in which something is appropriate. The choice depends on whether the focus is on a necessary condition or a specific circumstance.

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Authority and reliability

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Expert rating

Real-world application tested

Most frequent sentences: