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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
it must be
Grammar usage guide and real-world examplesUSAGE SUMMARY
'it must be' can be used in written English, typically in a declarative sentence.
An example sentence could be: "The sky was so dark, it must be a storm approaching."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
it has to be
it is certainly
it is necessarily
it is required to be
it probably is
it could only be
it should be easy
it promises to become
is confirmed to be
it seemed as though
one might think that
it appear as if
practically as if
it has been verified that
one might feel
it ought to be
constituted to be
it sees
there seems to be
it is expected to be
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
It must be overturned.
News & Media
It must be considered.
News & Media
It must be eliminated.
News & Media
It must be genetic.
News & Media
It must be examined.
News & Media
It must be true.
News & Media
It must be savaged.
News & Media
"It must be complete.
News & Media
"It must be.
News & Media
It must be tempting.
News & Media
It must be Mozambique.
News & Media
Expert writing Tips
Best practice
Use "it must be" to express a strong belief or logical deduction based on available evidence. Ensure the context provides sufficient clues to support the conclusion.
Common error
Avoid using "it must be" when the situation involves mere speculation without reasonable grounds. Opt for phrases like "it might be" or "it could be" to convey uncertainty more accurately.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it must be" functions primarily as a modal verb phrase used to express a strong degree of certainty, logical deduction, or a firm conclusion based on available information. Ludwig AI's analysis confirms its common use in drawing inferences.
Frequent in
News & Media
40%
Science
30%
Wiki
15%
Less common in
Formal & Business
5%
Reference
5%
Encyclopedias
5%
Ludwig's WRAP-UP
In summary, "it must be" is a versatile modal phrase commonly used to express strong conviction or logical deduction. As shown by Ludwig's examples, it frequently appears in news, scientific, and general contexts, maintaining a relatively neutral register. While grammatically sound and widely accepted, avoid overuse in purely speculative scenarios and consider formal alternatives in academic settings. The phrase provides a clear and assertive way to convey certainty, making it a valuable tool for effective communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
it has to be
Indicates necessity or obligation, similar to "it must be" but often implies an external requirement.
it's got to be
A more informal way of expressing necessity or deduction, closely related in meaning.
it is necessarily
Emphasizes the unavoidable nature of a condition or state, providing a more formal alternative.
it is required to be
Highlights a mandatory condition, suitable for formal contexts where precision is needed.
it's bound to be
Suggests a high probability based on circumstances, implying a strong likelihood.
it's likely to be
Indicates a reasonable chance or probability, less forceful than "it must be".
it probably is
Conveys a degree of certainty but leaves room for doubt, offering a less assertive tone.
it could only be
Limits the possibilities to a single option, expressing a conclusion based on available evidence.
it is certainly
Indicates a high degree of confidence in a statement, acting as a confident assertion.
it has to certainly be
Combines necessity with certainty, further emphasizing the conclusion's validity.
FAQs
How can I use "it must be" in a sentence?
Use "it must be" to express a logical deduction or a strong belief based on evidence. For example, "The phone is ringing; "it must be" John calling."
What phrases can I use instead of "it must be"?
Alternatives include "it has to be", "it is certainly", or "it is necessarily", depending on the nuance you want to convey.
When is it appropriate to use "it must be" versus "it might be"?
"It must be" suggests a high degree of certainty based on available evidence, while "it might be" indicates a possibility with less supporting evidence. Choose the phrase that best reflects your level of confidence.
Is "it must be" suitable for formal writing?
Yes, "it must be" is appropriate for formal writing, especially when making logical deductions. However, consider using more formal alternatives like "it is required to be" in highly academic or professional contexts.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested