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 quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

must have given

Grammar usage guide and real-world examples

USAGE 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

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

That must have given Curnyn some pleasure?

"It must have given a survival advantage".

My eyes must have given me away.

Cal must have given her a break.

I guess she must have given birth on the street".

News & Media

Independent

But it must have given her some confidence.

News & Media

The New Yorker

That must have given the columnist quite a kick.

News & Media

The New Yorker

They must have given you one, too, right?

Finally, someone backstage must have given him a push.

Successive Cambridge attacks must have given Reid more palpitations.

We must have given … we have taken their help.

News & Media

The Guardian
Show more...

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.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

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.

Expression frequency: Very common

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.

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.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

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.

Source & Trust

88%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: