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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
most probably is
Grammar usage guide and real-world examplesUSAGE SUMMARY
"most probably is" is correct and usable in written English.
You can use it when you are making guesses or possible outcomes. For example: "The lost item most probably is in the attic."
✓ Grammatically correct
Science
News & Media
Encyclopedias
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
The answer, most probably, is neither.
News & Media
The report concluded that doping in women's cycling "most probably is not as widespread and systematic.
News & Media
"Most probably is to make propaganda that will affect the tourism in Egypt badly, and that was the main aim".
News & Media
The hardness increased from 8to1919 GPa with increased Hf content, which most probably is related to the change in microstructure rather than change in lattice distortion.
Larch forest persisted around the lake over the entire considered period and most probably is a relict of the last ice age.
The answer to the first, most probably, is quite deep, given the size of the accumulated debts and the speed with which unemployment is now rising.
News & Media
A new study conducted by national appraisal experts says the answer most probably is yes — often tens of thousands of dollars more. Funded by the D.C.
News & Media
Comparing this gene order to those of other molluscan classes, we found that it most probably is the original gene order of the last common ancestor to all extant Mollusca.
The earliest report of Peter's priority as a witness to the Resurrection is found in the letters of Paul (1 Corinthians 15:5), and this most probably is the intent of Luke (24 34).
Encyclopedias
The earliest report of Peter's priority as a witness to the risen Jesus is found in the letters of Paul (1 Corinthians 15:5), and this most probably is the intent of Luke (24 34).
Encyclopedias
He wrote: "I should note that the aggressive starting position of his engagement letter most probably is cynically reliant on counterparties taking a passive approach to secure his services".
News & Media
Expert writing Tips
Best practice
Use "most probably is" when you want to express a strong likelihood or make an educated guess, but acknowledge that you cannot be 100% certain. It is suitable for both formal and informal contexts, conveying a sense of informed estimation.
Common error
Avoid using "most probably is" when you have concrete evidence or factual data. In such cases, opt for stronger assertions like "is" or "demonstrates" to reflect the certainty.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "most probably is" functions as an adverbial modifier indicating the speaker's assessment of the likelihood of a statement being true. It qualifies the verb "is", expressing a strong probability based on available evidence or reasoning. Ludwig AI confirms its validity and broad applicability.
Frequent in
Science
48%
News & Media
30%
Encyclopedias
3%
Less common in
Wiki
2%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "most probably is" is a grammatically sound and widely used phrase to indicate a high degree of likelihood without absolute certainty. Ludwig AI confirms that it's appropriate in diverse contexts, particularly in science and news media. The phrase strikes a balance between expressing confidence and acknowledging uncertainty. When writing, remember to use it when you want to make an informed guess, but avoid it when you have definitive proof. Alternatives like "is most likely" or "is highly probable" can be used for similar effect.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is most likely
Changes the word order while retaining a similar meaning of high probability.
is highly probable
Replaces "most probably" with a more formal and emphatic expression of likelihood.
is very likely to be
Adds "to be" to explicitly state the state or condition being considered, slightly softening the assertion.
is almost certainly
Emphasizes the nearness to certainty, suggesting a very slight chance of being incorrect.
is presumably
Indicates that something is likely based on presumption or available evidence.
is expected to be
Conveys an anticipation based on current trends or predictions.
is reasonable to assume
Shifts focus to the justification for believing something is true.
one can assume that
Makes it more generic that one can assume about a situation/topic
it would appear that
Introduces a nuance of observation and tentative conclusion about the event
it seems plausible that
Uses "plausible" to suggest credibility and possibility without absolute certainty.
FAQs
How can I use "most probably is" in a sentence?
Use "most probably is" to indicate a high degree of likelihood without absolute certainty. For example: "The delay "most probably is" due to unforeseen circumstances."
What are some alternatives to "most probably is"?
You can use alternatives such as "is most likely", "is highly probable", or "is very likely to be" to express a similar level of likelihood.
Is it correct to say "most probably is"?
Yes, "most probably is" is grammatically correct and widely used in both written and spoken English to express a strong likelihood. Ludwig AI confirms its validity.
What's the difference between "most probably is" and "probably is"?
"Most probably is" implies a slightly higher degree of certainty than "probably is". While both express likelihood, "most probably is" suggests a stronger basis for the assumption.
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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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested