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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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he must

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase 'he must' is correct and usable in written English.
You can use this phrase in any context where you are expressing an obligation or requirement, or a logical conclusion. For example: "He must have left early to avoid the traffic."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

He must.

News & Media

The New Yorker

He must be scared.

News & Media

The New York Times

"He must leave.

News & Media

The New York Times

He must have.

And he must.

News & Media

The New York Times

He must find one.

News & Media

The New Yorker

"He must be prosecuted.

News & Media

The New York Times

"He must be confused.

News & Media

Independent

He must know me".

News & Media

The New Yorker

He must attack.

News & Media

Independent

He must be moral.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

Use "he must" to clearly convey obligation or logical deduction. Ensure the context provides sufficient basis for the conclusion or necessity you are expressing.

Common error

Avoid using "he must" when a weaker suggestion like "he should" or "he could" is more appropriate. Overusing "he must" can make your writing sound overly assertive or presumptuous.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

87%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "he must" functions primarily as a modal verb phrase. It combines the third-person singular pronoun "he" with the modal verb "must" to express obligation, necessity, or a strong logical inference. As Ludwig AI confirms, this phrase is grammatically correct and widely applicable.

Expression frequency: Very common

Frequent in

News & Media

70%

Science

15%

Formal & Business

5%

Less common in

Encyclopedias

3%

Wiki

2%

Reference

5%

Ludwig's WRAP-UP

In summary, the phrase "he must" is a versatile modal verb phrase used to express obligation, necessity, or strong logical deduction. As Ludwig AI indicates, it is grammatically correct and widely used. Its frequency and presence in authoritative sources like The New York Times, BBC, and The Economist demonstrate its prevalence across various contexts. While generally neutral in register, it's important to avoid overusing it in situations where a weaker suggestion is more appropriate. Remember to use it to express certainty or obligation, and consider alternative phrases to soften your tone when needed.

FAQs

How can I use "he must" in a sentence?

Use "he must" to express obligation (e.g., "He must complete the task by Friday") or a strong inference (e.g., "He must be tired after working all day").

What is a less forceful alternative to "he must"?

If you want to suggest something without imposing a strict obligation, you can use alternatives like "he should" or "he ought to".

How does "he must" differ from "he might"?

"He must" indicates a high degree of certainty or obligation, while "he might" suggests possibility or uncertainty. The phrase "he might" express possibility and indicate uncertainty.

When is it appropriate to use "he must have"?

"He must have" is used to make a logical deduction about a past event. For example, "He must have left already, since his car is gone".

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Source & Trust

87%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences: