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
to be define
Grammar usage guide and real-world examplesUSAGE SUMMARY
"to be define" is correct and usable in written English.
You can use it when referring to something that has yet to be defined or clarified. For example, "The exact scope of the project is yet to be define."
✓ Grammatically correct
Academia
Formal & Business
News & Media
Science
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
Much remains to be defined.
News & Media
"I want to be defined by consistency.
News & Media
Terms need to be defined first.
News & Media
But some stars refuse to be defined.
News & Media
Beyond that, it remains to be defined.
News & Media
The exact treatment needs to be defined.
Science & Research
They do not want to be defined.
News & Media
I want to be defined by what I am for.
News & Media
But I think her legacy is yet to be defined".
News & Media
The world is an appetite waiting to be defined.
News & Media
How is extremism actually going to be defined?
News & Media
Expert writing Tips
Best practice
When using the phrase "to be define", ensure it fits the grammatical structure of your sentence. It often requires a preceding auxiliary verb, such as 'is', 'needs', or 'has'.
Common error
Avoid using "to be define" when the context requires the past participle form, "to be defined". The latter is grammatically correct and more widely accepted.
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "to be define" functions as an infinitive phrase, typically requiring a preceding auxiliary verb to form a complete clause. Ludwig AI indicates the phrase is grammatically questionable, with the more suitable form being "to be defined".
Frequent in
News & Media
0%
Science
0%
Formal & Business
0%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "to be define" is an infinitive construction that expresses the need for something to be clarified or explained. While the Ludwig AI considers it grammatically questionable, the corrected form, "to be defined", is widely accepted and can be used across various registers. It's crucial to ensure the phrase fits the grammatical structure, often requiring auxiliary verbs like 'is', 'needs', or 'has'. When in doubt, consider using alternatives like "to be determined" or "to be specified" for increased clarity and accuracy.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
to be defined
Uses the correct past participle form of the verb "define".
to be determined
Emphasizes the act of finding something out, rather than setting its definition.
to be established
Focuses on setting up or creating something, rather than strictly defining it.
to be identified
Highlights the act of recognizing or pinpointing something.
to be delineated
Implies a clear outlining or marking of boundaries.
to be specified
Suggests giving explicit details or instructions.
to be articulated
Stresses the clear and expressive statement of something.
to be clarified
Indicates the need to make something easier to understand.
to be explained
Highlights the need to make something understandable.
to be resolved
Implies the act of finding a solution or settling a question.
FAQs
How to use "to be define" in a sentence?
While grammatically questionable, "to be define" can be used in specific contexts where an action needs clarification. However, it's often better to use "to be defined" for grammatical correctness.
What can I say instead of "to be define"?
You can use alternatives like "to be determined", "to be specified", or "to be clarified" depending on the context.
Which is correct, "to be define" or "to be defined"?
"To be defined" is the grammatically correct form. "To be define" is less common and might be considered incorrect in formal writing. Prefer "to be defined".
What's the difference between "to be define" and "to be defined"?
"To be defined" is the passive infinitive form, indicating something that needs to be clarified or explained. "To be define" uses the base form, and is nonstandard. In most cases, "to be defined" is the preferred choice.
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
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested