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 the rate of
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "be the rate of" is not correct and does not convey a clear meaning in written English.
It may be intended to express a specific measurement or comparison, but it lacks clarity and context. Example: "The goal is to determine what should be the rate of interest for the loan."
⚠ May contain grammatical issues
Science
News & Media
Academia
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
60 human-written examples
What will be the rate of inflation?
News & Media
"The real question will be the rate of growth," said Varsha Rao, Ms. Naficy's partner at eve.com.com
News & Media
The larger the first three, the more rapid will be the rate of growth.
Encyclopedias
If we provisionally (and wrongly) assume perfect competition, this marginal product will also be the rate of return on investment.
News & Media
The major cause of these differences appeared to be the rate of crack propagation through the sheet material.
They want the complete Polly Toynbee: a steady increase in health spending each year above and beyond whatever may be the rate of growth, paid for by continuing increases in taxation.
News & Media
So, just to use some new notation, that would be the rate of change of A with respect to theta, keeping a and b fixed at the same time.
This is going to be the rate of change of the function with respect to x times Δx, and this–I'm sorry, I got it wrong, with respect to y times Δy.
Academia
The key to brain development seems to be the rate of early learning -- not so much what is wired but how much of the brain gets interconnected in those first months and years.
News & Media
Let f k i be the rate of data flow from u to t through path k i.
Assume B(T =1 and let R f be the rate of return of a risk-free bond.
Expert writing Tips
Best practice
When discussing rates, use action verbs like "determine", "calculate", or "establish" to clearly indicate the process of finding or setting the rate.
Common error
Avoid using passive constructions like "what will be the rate of?" Instead, opt for active constructions such as "how can we determine the rate of?" for clarity and impact.
Source & Trust
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "be the rate of" appears within questions or statements aimed at identifying or defining a specific rate. However, Ludwig AI indicates that the phrase is grammatically incorrect and lacks clarity.
Frequent in
Science
40%
News & Media
40%
Academia
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "be the rate of" is grammatically questionable and lacks clarity. Ludwig AI also confirms this point. While it appears in various contexts like science, news, and academia, it is advisable to use stronger verbs like "determine", "calculate", or "establish" to clearly express the process of finding or setting a rate. By using more direct language and active voice, you can improve the clarity and impact of your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
determine the rate of
Focuses on the act of finding or establishing the rate.
calculate the rate of
Emphasizes the process of computing the rate.
establish the rate of
Highlights the action of setting or defining the rate.
measure the rate of
Focuses on the act of quantifying the rate.
assess the rate of
Indicates an evaluation or judgment of the rate.
find the rate of
Implies a search or discovery of the rate.
ascertain the rate of
Stresses the action of finding something out for certain.
quantify the rate of
Emphasizes expressing the rate numerically.
define the rate of
Highlights setting a precise meaning or scope for the rate.
estimate the rate of
Involves approximating the rate based on available information.
FAQs
How can I correctly use a phrase that involves finding a rate?
Instead of the grammatically awkward "be the rate of", use stronger verbs like "determine", "calculate", or "establish". For example, "How can we "determine the rate of" inflation?" is preferable.
What is a more appropriate way to ask about a rate?
Rephrase your question to use active voice. Instead of "What will be the rate of growth?", try "What is the "projected growth rate"?"
Is "be the rate of" grammatically correct?
No, "be the rate of" is not considered grammatically correct. It's better to use phrases like "determine the rate of" or "establish the rate of".
What's the difference between "determine the rate of" and "be the rate of"?
"Determine the rate of" is an active construction that clearly indicates the process of finding the rate, while "be the rate of" is a grammatically weak and unclear phrasing. Opt for ""determine the rate of"" for better clarity.
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
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested