he must be

USAGE SUMMARY

'he must be' is correct and usable in written English.
It is used to express that something is probably the case based on the speaker's understanding. For example: "He must be the one who forgot their wallet. Who else would be so careless?".

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

He must be scared.

The New York Times

"He must be prosecuted.

The New York Times

"He must be confused.

Independent

He must be moral.

The New York Times

He must be dreaming.

Independent

He must be depressed.

The New York Times - Science

He MUST be stopped!

The New York Times

He must be strong".

The New York Times

He must be removed.

The New York Times

He must be nervous".

The New York Times - Sports

He must be having fun.

The New Yorker

Expert writing Tips

Best practice

Use "he must be" when you want to express a logical deduction or a strong probability based on available information. Ensure the context provides sufficient evidence to support your inference.

Common error

Avoid using "he must be" when you lack sufficient evidence, or when expressing a mere guess. Instead, use phrases like "he might be" or "he could be" to indicate uncertainty.

Linguistic Context

The phrase "he must be" functions as an epistemic modal, expressing a deduction or inference about the state or condition of the subject. It indicates a high degree of certainty based on available evidence, as evidenced by Ludwig.

Expression frequency: Very common

Frequent in

News & Media

100%

Less common in

Science

0%

Formal & Business

0%

Encyclopedias

0%

Ludwig's WRAP-UP

In summary, "he must be" is a versatile phrase used to express a reasoned deduction or a high degree of certainty. As Ludwig AI confirms, it's grammatically correct and widely used, particularly in news and media. While it's appropriate for formal contexts, be mindful of overstating certainty when evidence is lacking. Consider alternatives like "he might be" or "he could be" to convey uncertainty. The phrase's frequency indicates its common usage, emphasizing the importance of understanding its proper context and application.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

presumably he is

This phrase suggests that his state is based on presumption or probability, which is similar to the original, but slightly weaker in conviction.

he is certainly

Similar to 'he is undoubtedly', this emphasizes the certainty of his state, but with a slightly less forceful tone.

he is definitely

Like 'he is certainly', this conveys a strong belief in his state or condition, but remains a statement of fact rather than deduction.

he is undoubtedly

This phrase expresses a high degree of certainty about someone's state or condition, focusing more on the certainty than the inference.

it is logical to conclude he is

This option emphasizes the logical basis for the conclusion about his state, focusing on reasoning.

one can infer that he is

This phrase explicitly frames the statement as an inference, making the reasoning process more apparent than the original phrase.

it is reasonable to assume he is

This alternative highlights the reasonableness of the assumption about his state, rather than stating a deduction directly.

it is imperative that he be

This alternative conveys a stronger sense of necessity or requirement compared to "he must be".

it is essential that he be

Similar to 'it is imperative', this alternative emphasizes the importance of his being in a particular state or location, rather than just a deduction.

he is required to be

This phrase suggests a formal obligation or requirement for someone to be in a certain state or location, differing from a simple deduction.

FAQs

How can I rephrase "he must be" to show less certainty?

To express less certainty, you can use alternatives such as "he might be", "he could be", or "he may be" depending on the context.

What's the difference between "he must be" and "he has to be"?

"He must be" typically expresses a deduction based on evidence, whereas "he has to be" often indicates an obligation or requirement. While both can imply certainty, their primary connotations differ.

Is "he must be" appropriate for formal writing?

Yes, "he must be" is suitable for formal writing when used to express a logical inference supported by evidence. Ensure the tone aligns with the overall formality of the piece.

How to use "he must be" in a sentence?

You can use "he must be" to infer a state or condition based on available information. For example, "He hasn't slept in 48 hours; "he must be exhausted"".