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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
must have given
Grammar usage guide and real-world examplesUSAGE SUMMARY
"must have given" is a correct and usable phrase in written English.
You can use it to express an opinion about something that happened in the past, which you think is likely to have happened. For example: "I haven't heard from her in a while, so she must have given up on the project."
✓ Grammatically correct
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 examples from authoritative sources
Exact Expressions
60 human-written examples
That must have given Curnyn some pleasure?
News & Media
"It must have given a survival advantage".
News & Media
My eyes must have given me away.
News & Media
Cal must have given her a break.
News & Media
I guess she must have given birth on the street".
News & Media
But it must have given her some confidence.
News & Media
That must have given the columnist quite a kick.
News & Media
They must have given you one, too, right?
News & Media
Finally, someone backstage must have given him a push.
News & Media
Successive Cambridge attacks must have given Reid more palpitations.
News & Media
We must have given … we have taken their help.
News & Media
Expert writing Tips
Best practice
Use "must have given" to express a strong inference about a past event based on available evidence. For example, "The team must have given their best effort, considering their final score."
Common error
Avoid using "must have gave"; the correct form is "must have given". Remember that after "have", the past participle form of the verb is required.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "must have given" functions as a modal verb phrase expressing a strong inference or deduction about a past action. Ludwig provides numerous examples showcasing its use in various contexts, indicating a high degree of certainty but not absolute proof. Ludwig AI confirms its correct usage.
Frequent in
News & Media
72%
Science
24%
Encyclopedias
2%
Less common in
Wiki
1%
Formal & Business
1%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "must have given" is a grammatically sound and frequently employed modal verb construction used to express a high degree of certainty about a past event. As validated by Ludwig, it is versatile across various contexts, including news, media, and scientific domains. While the phrase conveys a strong inference, it does not guarantee absolute proof, making it essential to consider context when interpreting its meaning. Alternatives such as "likely provided" or "undoubtedly supplied" can offer nuanced variations in formality. With very common usage, mastering "must have given" will surely enhance the clarity and confidence in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
must have supplied
Replaces “given” with “supplied” to provide a similar meaning.
likely provided
Emphasizes the probability of providing something.
probably offered
Focuses on the offering aspect with a high degree of certainty.
undoubtedly supplied
Highlights the certainty of the supply.
certainly furnished
Stresses the assuredness of furnishing something.
it is highly likely that they furnished
Adds emphasis on likelihood and uses the term furnished.
it's probable that they gave
Expresses the idea as a probability rather than a certainty.
it is reasonable to suggest it granted
Presents the idea as a reasonable suggestion involving a grant.
one can assume it provided
Shifts focus to assumption about the provision.
it can be inferred that it yielded
More formal and emphasizes inference and yielding.
FAQs
How can I use "must have given" in a sentence?
Use "must have given" to indicate a strong likelihood or deduction about a past action. For instance, "She /s/must+have+given her presentation already, since the meeting is about to end."
What's a more formal alternative to "must have given"?
For a more formal tone, consider using phrases like "likely provided" or "undoubtedly supplied". These alternatives, while maintaining a similar meaning, offer a more sophisticated register than /s/must+have+given.
Is it correct to say "must have gave" instead of "must have given"?
No, "must have gave" is grammatically incorrect. The correct form is "must have given", as 'given' is the past participle of 'give' and should be used after 'have'.
What does "must have given" imply about the certainty of an event?
"Must have given" suggests a high degree of certainty based on available evidence, but it's not a guarantee. It indicates a strong likelihood, but the event is not definitively proven. You can use alternatives such as "likely provided" if you intend to use less certain language.
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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