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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 certainly will
Grammar usage guide and real-world examplesUSAGE SUMMARY
"most certainly will" is a correct and usable phrase in written English.
You can use it to express assurance or certainty that something is going to happen. For example, "I most certainly will attend the meeting."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
They most certainly will!
News & Media
It most certainly will be.
News & Media
But that it most certainly will not be.
News & Media
In Jason Day's case it most certainly will.
News & Media
Songwriters without a publishing deal most certainly will.
News & Media
Your leader writer may be forgiven but they most certainly will not.Chris Douglas .
News & Media
They should, but most certainly will not be if Washington can't resolve its fiscal differences.
News & Media
And if none of that does it, the prices most certainly will.
News & Media
"To me, that is fraught with legal challenges which most certainly will come".
News & Media
Then there is the possibility of negative inspection reports, where blame most certainly will be apportioned.
News & Media
While those information operations have not yet reached the United States, they most certainly will.
News & Media
Expert writing Tips
Best practice
Use "most certainly will" to convey a high degree of confidence or assurance about a future event. It adds emphasis and formality to your statement.
Common error
Avoid using "most certainly will" in very casual conversations. Its formality can sound overly dramatic or unnatural in informal settings. Opt for simpler alternatives like "definitely will" or "surely will" in less formal situations.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "most certainly will" functions as an emphatic adverbial phrase that modifies a verb, expressing a high degree of certainty about a future action or event. As Ludwig AI confirms, this is a correct and usable phrase. Examples from Ludwig show its usage across different contexts.
Frequent in
News & Media
65%
Science
15%
Formal & Business
10%
Less common in
Academia
4%
Wiki
3%
Reference
3%
Ludwig's WRAP-UP
In summary, "most certainly will" is a grammatically sound phrase used to express a high degree of certainty about future events. As confirmed by Ludwig AI, its usage is correct and versatile across various contexts, though more common in news and formal settings. The phrase conveys strong assurance, but should be used judiciously in informal contexts to avoid sounding overly dramatic. When a less formal tone is desired, alternatives like "definitely will" or "surely will" may be more appropriate. Given its frequent use in authoritative sources like The Guardian, The New York Times, and The Economist, the phrase holds considerable weight in formal communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
most assuredly will
Emphasizes confidence in a future event, maintaining a formal tone.
almost certainly will
Indicates a very high probability, slightly less emphatic than the original.
most definitely will
Adds emphasis to the certainty, using a more informal tone.
undoubtedly will
Asserts that something will happen without doubt, maintaining a formal register.
without a doubt will
Rephrases certainty by negating doubt, adding a slight emphasis.
surely will
Expresses expectation or confidence, less emphatic than the original phrase.
certainly will
States a fact with confidence, slightly more direct and less emphatic.
definitely will
Expresses a firm intention or future event with clarity, slightly less formal.
will certainly
Reorders the words, keeping the same meaning but altering the emphasis.
will undoubtedly
Reorders the words, keeping the same meaning but altering the emphasis.
FAQs
How can I use "most certainly will" in a sentence?
Use "most certainly will" to express strong assurance about a future event. For example, "The project "most certainly will" be completed on time."
What's the difference between "most certainly will" and "certainly will"?
"Most certainly will" emphasizes a greater degree of assurance and formality compared to "certainly will", which is more straightforward.
Are there situations where "most certainly will" is not appropriate?
Yes, it may sound overly formal or dramatic in casual conversations. Simpler alternatives like "definitely will" or "surely will" are often more suitable.
What phrases are similar in meaning to "most certainly will"?
Similar phrases include "most assuredly will", "almost certainly will", and "without a doubt will". The best choice depends on the specific nuance you want to convey.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested