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
be subject
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "be subject" is correct and usable in written English.
It is typically used to indicate that something is under the authority or control of something else, often in legal or formal contexts. Example: "All employees must be subject to the company's code of conduct."
✓ Grammatically correct
News & Media
Science
Formal & Business
Wiki
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
60 human-written examples
Farmers' fields will be subject to inspection.
News & Media
He will be subject to police checks.
News & Media
Should lobbying be subject to tighter rules?
News & Media
It should not be subject to negotiation".
News & Media
Unrepaired leaks will be subject to fines.
News & Media
Families would be subject to compulsory inspections.
News & Media
Withdrawals will be subject to income tax.
News & Media
He'd be subject to different environmental influences.
News & Media
It may yet be subject to appeal.
News & Media
Nobody should be subject to arbitrary surveillance.
News & Media
We shouldn't be subject to them.
News & Media
Expert writing Tips
Best practice
Use "be subject" to clearly indicate that something is under the influence, control, or potential impact of something else. For example, "All data is estimated based on a preliminary study. Final estimates will be subject to change."
Common error
Avoid using "be subject" when you mean to convey that something is the main topic or focus. "Subject" in that context is a noun, not part of the verb phrase "be subject."
Source & Trust
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "be subject" primarily functions as a verb phrase, indicating that something is liable, prone, or exposed to a particular condition, influence, or authority. Ludwig AI confirms its typical usage in indicating authority or control.
Frequent in
News & Media
68%
Science
15%
Formal & Business
7%
Less common in
Wiki
6%
Academia
2%
Encyclopedias
2%
Ludwig's WRAP-UP
The phrase "be subject" is a very common verb phrase used to indicate that something is under the influence, control, or potential impact of something else. Ludwig AI analysis confirms this and shows examples across various contexts such as news, science, and formal writing. When writing, remember that this phrase often denotes conditionality or subordination, as in "Final estimates will be subject to change". Although versatile, it is best to avoid confusion with the noun "subject" that refers to a topic. Alternatives like "be liable to" or "be governed by" can be used to add nuance. The phrase's prevalence in reputable sources such as The New York Times and The Guardian, combined with its grammatical correctness, underscores its reliability in formal communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
be liable to
Emphasizes legal or financial responsibility more strongly.
be governed by
Specifically implies regulation or control by a set of rules or laws.
be under the authority of
Highlights a hierarchical relationship of power or command.
be exposed to
Focuses on the potential for experiencing something, often negative.
be prone to
Highlights a natural tendency or susceptibility.
be controlled by
Implies direct influence or manipulation.
be conditional on
Indicates dependence on a specific condition being met.
be open to
Suggests a willingness or vulnerability to something.
be contingent upon
Similar to 'conditional on' but often used in more formal contexts.
be at the mercy of
Emphasizes a lack of control and dependence on external factors.
FAQs
How can I use "be subject" in a sentence?
The phrase "be subject" indicates that something is under the control, influence, or potential impact of something else. For example, "All employees will be subject to the new company policy."
What is a good alternative to "be subject"?
Depending on the context, you can use phrases like "be liable to", "be governed by", or "be exposed to".
Is it correct to say "is subject of" instead of "is the subject of"?
While grammatically incorrect, "is subject of" is sometimes used informally, but "is the subject of" is the standard and more precise way to express that something is the topic or focus.
What's the difference between "be subject to" and "be subjected to"?
"Be subject to" means to be liable or exposed to something, while "be subjected to" means to be forced to undergo something. For example, "The data is subject to change" vs. "The prisoner was subjected to harsh treatment."
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
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested