must be having

USAGE SUMMARY

The phrase 'must be having' is correct and usable in written English.
You use this phrase when you are talking about an assumption or guess that something is happening. For example: "I can't call them, they must be having dinner."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

He must be having fun.

The New Yorker

They must be having a laugh.

Independent

He must be having a nightmare.

The New Yorker

We must be having an election soon.

The New York Times

Beetrootphiles must be having a great time.

The Guardian - Lifestyle

My husband must be having an affair.

The New Yorker

You must be having a laugh.

The Guardian - Opinion

Apple's lawyers must be having conniptions.

The New York Times - Tech

"The rest must be having lunch," he said.

The New Yorker

In that regard, he must be having a delightful summer.

The New York Times

You thought, "The guy must be having a heart attack".

The New York Times

Expert writing Tips

Best practice

Use "must be having" to express a logical deduction or strong assumption about an ongoing situation, especially when there is evidence or context to support the inference. For example, "They didn't answer the phone; they "must be having" dinner."

Common error

Avoid using "must be having" when the assumption is based on little or no evidence. Phrases like "might be having" or "could be having" are more appropriate when the likelihood is uncertain.

Linguistic Context

The phrase "must be having" functions as an epistemic modal construction, indicating a strong degree of certainty or logical deduction about an ongoing action or experience. It expresses the speaker's belief that something is very likely happening based on available evidence or contextual cues, as supported by Ludwig examples.

Expression frequency: Very common

Frequent in

News & Media

90%

Wiki

5%

Academia

2%

Less common in

Formal & Business

1%

Science

1%

Reference

1%

Ludwig's WRAP-UP

In summary, "must be having" is a versatile phrase used to express a strong belief or logical deduction about an ongoing situation. Ludwig AI confirms its grammatical correctness and widespread usage. It's prevalent in news and media, where inferences about events are frequently made, but also appears in wiki and academia offering a balance of neutral register. When writing, use "must be having" to confidently express an inference, but be cautious not to overuse it for weak assumptions. Alternatives such as "is probably experiencing" or "is likely undergoing" can be used to convey varying degrees of certainty.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

is undoubtedly experiencing

Replaces "must be" with "is undoubtedly" to express a higher degree of certainty.

is certainly undergoing

Emphasizes the certainty of the experience with 'certainly'.

is probably experiencing

Uses 'probably' for less certainty than 'must'.

is bound to be experiencing

Expresses inevitability with 'bound to be'.

is likely undergoing

Replaces "having" with "undergoing" and "must" with "likely" for a more formal tone and reduced certainty.

is definitely going through

Uses "definitely" instead of "must" for a strong assertion and "going through" instead of "having".

is presumably enjoying

Substitutes "must" with "presumably" and "having" with "enjoying" for a slightly different emphasis.

is expected to be having

Shifts the focus to expectation rather than deduction.

one can assume is having

Introduces a level of generality about the assumption.

it is reasonable to assume is having

Adds a degree of rationality to the assumption.

FAQs

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

Use "must be having" when you want to express a strong belief or logical deduction about something that is currently happening. For example, "The lights are off; they "must be having" a power outage".

What can I say instead of "must be having"?

Alternatives to "must be having" include "is probably experiencing", "is likely undergoing", or "is undoubtedly experiencing", depending on the level of certainty you wish to convey.

Which is correct, "must be having" or "has to be having"?

"Must be having" and "has to be having" are both grammatically correct, but "must be having" is generally preferred for expressing a logical deduction, while "has to be having" might imply more of an obligation or requirement. "They "must be having" fun" suggests a logical conclusion, whereas "They have to be having fun" suggests they are obligated to have fun (less usual).'

What's the difference between "must be having" and "might be having"?

"Must be having" indicates a high degree of certainty or a logical deduction based on available evidence. "Might be having", on the other hand, indicates possibility or uncertainty. For example, "They "must be having" a party (because I hear loud music)" versus "They "might be having" a party (I'm not sure)".